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Posted to commits@hudi.apache.org by xu...@apache.org on 2022/10/19 12:45:03 UTC
[hudi] branch asf-site updated: [HUDI-5050] Release notes for version 0.12.1 (#6992)
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xushiyan pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/hudi.git
The following commit(s) were added to refs/heads/asf-site by this push:
new 1677b2a7b3 [HUDI-5050] Release notes for version 0.12.1 (#6992)
1677b2a7b3 is described below
commit 1677b2a7b3a863e96022ce0d8c658694a9ad6686
Author: Zhaojing Yu <yu...@bytedance.com>
AuthorDate: Wed Oct 19 20:44:57 2022 +0800
[HUDI-5050] Release notes for version 0.12.1 (#6992)
---
hudi-integ-test/compose_env | 1 +
.../dependency-reduced-pom.xml | 148 +
.../dependency-reduced-pom.xml | 249 ++
website/docs/deployment.md | 8 +-
website/docs/gcp_bigquery.md | 4 +-
website/docs/hoodie_deltastreamer.md | 2 +-
website/docs/syncing_datahub.md | 4 +-
website/docusaurus.config.js | 10 +-
website/releases/download.md | 4 +
website/releases/older-releases.md | 2 +-
website/releases/release-0.10.0.md | 2 +-
website/releases/release-0.10.1.md | 2 +-
website/releases/release-0.11.0.md | 2 +-
website/releases/release-0.11.1.md | 2 +-
website/releases/release-0.12.0.md | 2 +-
website/releases/release-0.12.1.md | 58 +
website/releases/release-0.7.0.md | 2 +-
website/releases/release-0.8.0.md | 2 +-
website/releases/release-0.9.0.md | 2 +-
.../versioned_docs/version-0.12.1/azure_hoodie.md | 50 +
.../version-0.12.1/basic_configurations.md | 884 ++++
.../versioned_docs/version-0.12.1/bos_hoodie.md | 57 +
website/versioned_docs/version-0.12.1/cli.md | 553 +++
website/versioned_docs/version-0.12.1/cloud.md | 31 +
.../versioned_docs/version-0.12.1/clustering.md | 267 ++
.../versioned_docs/version-0.12.1/compaction.md | 140 +
.../versioned_docs/version-0.12.1/comparison.md | 56 +
website/versioned_docs/version-0.12.1/concepts.md | 172 +
.../version-0.12.1/concurrency_control.md | 210 +
.../version-0.12.1/configurations.md | 4584 ++++++++++++++++++++
.../versioned_docs/version-0.12.1/cos_hoodie.md | 71 +
.../version-0.12.1}/deployment.md | 8 +-
.../version-0.12.1/disaster_recovery.md | 296 ++
.../versioned_docs/version-0.12.1/docker_demo.md | 1489 +++++++
.../versioned_docs/version-0.12.1/encryption.md | 73 +
website/versioned_docs/version-0.12.1/faq.md | 639 +++
.../versioned_docs/version-0.12.1/file_layouts.md | 16 +
.../versioned_docs/version-0.12.1/file_sizing.md | 53 +
.../version-0.12.1/flink-quick-start-guide.md | 339 ++
.../version-0.12.1/flink_configuration.md | 117 +
.../version-0.12.1}/gcp_bigquery.md | 4 +-
.../versioned_docs/version-0.12.1/gcs_hoodie.md | 60 +
.../version-0.12.1/hoodie_cleaner.md | 109 +
.../version-0.12.1}/hoodie_deltastreamer.md | 2 +-
.../version-0.12.1/ibm_cos_hoodie.md | 77 +
website/versioned_docs/version-0.12.1/indexing.md | 95 +
.../versioned_docs/version-0.12.1/jfs_hoodie.md | 96 +
.../version-0.12.1/key_generation.md | 215 +
website/versioned_docs/version-0.12.1/markers.md | 90 +
website/versioned_docs/version-0.12.1/metadata.md | 98 +
.../version-0.12.1/metadata_indexing.md | 193 +
website/versioned_docs/version-0.12.1/metrics.md | 203 +
.../version-0.12.1/migration_guide.md | 80 +
.../versioned_docs/version-0.12.1/oci_hoodie.md | 80 +
.../versioned_docs/version-0.12.1/oss_hoodie.md | 70 +
website/versioned_docs/version-0.12.1/overview.md | 69 +
.../versioned_docs/version-0.12.1/performance.md | 133 +
.../version-0.12.1/precommit_validator.md | 74 +
website/versioned_docs/version-0.12.1/privacy.md | 22 +
.../versioned_docs/version-0.12.1/procedures.md | 452 ++
.../version-0.12.1/query_engine_setup.md | 108 +
.../versioned_docs/version-0.12.1/querying_data.md | 309 ++
.../version-0.12.1/quick-start-guide.md | 1441 ++++++
website/versioned_docs/version-0.12.1/s3_hoodie.md | 94 +
.../version-0.12.1/schema_evolution.md | 372 ++
.../version-0.12.1/snapshot_exporter.md | 115 +
website/versioned_docs/version-0.12.1/structure.md | 20 +
.../syncing_aws_glue_data_catalog.md | 18 +
.../version-0.12.1}/syncing_datahub.md | 4 +-
.../version-0.12.1/syncing_metastore.md | 263 ++
.../version-0.12.1/table_management.md | 283 ++
.../versioned_docs/version-0.12.1/table_types.md | 110 +
website/versioned_docs/version-0.12.1/timeline.md | 42 +
.../versioned_docs/version-0.12.1/transforms.md | 66 +
.../version-0.12.1/troubleshooting.md | 161 +
.../versioned_docs/version-0.12.1/tuning-guide.md | 57 +
website/versioned_docs/version-0.12.1/use_cases.md | 138 +
.../version-0.12.1/write_operations.md | 60 +
.../versioned_docs/version-0.12.1/writing_data.md | 535 +++
.../version-0.12.1-sidebars.json | 127 +
website/versions.json | 1 +
81 files changed, 17125 insertions(+), 32 deletions(-)
diff --git a/hudi-integ-test/compose_env b/hudi-integ-test/compose_env
new file mode 100644
index 0000000000..7117645d8b
--- /dev/null
+++ b/hudi-integ-test/compose_env
@@ -0,0 +1 @@
+HUDI_WS=/Users/bytedance/work/hudi
diff --git a/hudi-table-management-service/dependency-reduced-pom.xml b/hudi-table-management-service/dependency-reduced-pom.xml
new file mode 100644
index 0000000000..8ba0dc412d
--- /dev/null
+++ b/hudi-table-management-service/dependency-reduced-pom.xml
@@ -0,0 +1,148 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <parent>
+ <artifactId>hudi</artifactId>
+ <groupId>org.apache.hudi</groupId>
+ <version>0.12.1-rc1</version>
+ </parent>
+ <modelVersion>4.0.0</modelVersion>
+ <artifactId>hudi-table-management-service</artifactId>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.jacoco</groupId>
+ <artifactId>jacoco-maven-plugin</artifactId>
+ </plugin>
+ <plugin>
+ <artifactId>maven-jar-plugin</artifactId>
+ <version>${maven-jar-plugin.version}</version>
+ <executions>
+ <execution>
+ <phase>test-compile</phase>
+ <goals>
+ <goal>test-jar</goal>
+ </goals>
+ </execution>
+ </executions>
+ <configuration>
+ <skip>false</skip>
+ </configuration>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.rat</groupId>
+ <artifactId>apache-rat-plugin</artifactId>
+ </plugin>
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>build-helper-maven-plugin</artifactId>
+ <version>${build-helper-maven-plugin.version}</version>
+ <executions>
+ <execution>
+ <id>add-source</id>
+ <phase>generate-sources</phase>
+ <goals>
+ <goal>add-source</goal>
+ </goals>
+ <configuration>
+ <sources>
+ <source>src/main/java</source>
+ </sources>
+ </configuration>
+ </execution>
+ <execution>
+ <id>add-test-source</id>
+ <phase>generate-sources</phase>
+ <goals>
+ <goal>add-test-source</goal>
+ </goals>
+ <configuration>
+ <sources>
+ <source>src/test/java</source>
+ <source>src/main/java</source>
+ </sources>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>${maven-shade-plugin.version}</version>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <createSourcesJar>${shadeSources}</createSourcesJar>
+ <transformers>
+ <transformer>
+ <mainClass>org.apache.hudi.table.management.TableManagementServer</mainClass>
+ </transformer>
+ <transformer />
+ <transformer>
+ <addHeader>true</addHeader>
+ </transformer>
+ <transformer>
+ <resource>META-INF/LICENSE</resource>
+ <file>target/classes/META-INF/LICENSE</file>
+ </transformer>
+ </transformers>
+ <filters>
+ <filter>
+ <artifact>*:*</artifact>
+ <excludes>
+ <exclude>META-INF/*.SF</exclude>
+ <exclude>META-INF/*.DSA</exclude>
+ <exclude>META-INF/*.RSA</exclude>
+ <exclude>META-INF/services/javax.*</exclude>
+ </excludes>
+ </filter>
+ </filters>
+ <finalName>${project.artifactId}-${project.version}</finalName>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.avro</groupId>
+ <artifactId>avro</artifactId>
+ <version>1.8.2</version>
+ <scope>provided</scope>
+ <exclusions>
+ <exclusion>
+ <artifactId>slf4j-api</artifactId>
+ <groupId>org.slf4j</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.junit.jupiter</groupId>
+ <artifactId>junit-jupiter-api</artifactId>
+ <version>5.7.2</version>
+ <scope>test</scope>
+ <exclusions>
+ <exclusion>
+ <artifactId>apiguardian-api</artifactId>
+ <groupId>org.apiguardian</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>opentest4j</artifactId>
+ <groupId>org.opentest4j</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>junit-platform-commons</artifactId>
+ <groupId>org.junit.platform</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ </dependencies>
+ <properties>
+ <mybatis.version>3.4.6</mybatis.version>
+ <maven.compiler.source>8</maven.compiler.source>
+ <maven.compiler.target>8</maven.compiler.target>
+ </properties>
+</project>
diff --git a/packaging/hudi-timeline-server-bundle/dependency-reduced-pom.xml b/packaging/hudi-timeline-server-bundle/dependency-reduced-pom.xml
new file mode 100644
index 0000000000..9d7cff286c
--- /dev/null
+++ b/packaging/hudi-timeline-server-bundle/dependency-reduced-pom.xml
@@ -0,0 +1,249 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <parent>
+ <artifactId>hudi</artifactId>
+ <groupId>org.apache.hudi</groupId>
+ <version>0.12.1</version>
+ <relativePath>../../pom.xml</relativePath>
+ </parent>
+ <modelVersion>4.0.0</modelVersion>
+ <artifactId>hudi-timeline-server-bundle</artifactId>
+ <build>
+ <resources>
+ <resource>
+ <directory>src/main/resources</directory>
+ </resource>
+ </resources>
+ <plugins>
+ <plugin>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>${maven-shade-plugin.version}</version>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <transformers>
+ <transformer />
+ <transformer>
+ <mainClass>org.apache.hudi.timeline.service.TimelineService</mainClass>
+ </transformer>
+ </transformers>
+ </configuration>
+ </execution>
+ </executions>
+ <configuration>
+ <createDependencyReducedPom>true</createDependencyReducedPom>
+ <filters>
+ <filter>
+ <artifact>*:*</artifact>
+ <excludes>
+ <exclude>META-INF/*.SF</exclude>
+ <exclude>META-INF/*.DSA</exclude>
+ <exclude>META-INF/*.RSA</exclude>
+ <exclude>META-INF/services/javax.*</exclude>
+ <exclude>**/*.proto</exclude>
+ <exclude>hbase-webapps/**</exclude>
+ </excludes>
+ </filter>
+ </filters>
+ <artifactSet>
+ <includes>
+ <include>org.apache.hudi:hudi-common</include>
+ <include>org.apache.hudi:hudi-timeline-service</include>
+ <include>org.apache.httpcomponents:httpclient</include>
+ <include>org.apache.httpcomponents:httpcore</include>
+ <include>org.mortbay.jetty:jetty</include>
+ <include>org.mortbay.jetty:jetty-util</include>
+ <include>org.apache.httpcomponents:fluent-hc</include>
+ <include>io.javalin:javalin</include>
+ <include>org.jetbrains.kotlin:kotlin-stdlib-jdk8</include>
+ <include>org.jetbrains.kotlin:kotlin-stdlib</include>
+ <include>org.jetbrains.kotlin:kotlin-stdlib-common</include>
+ <include>org.jetbrains:annotations</include>
+ <include>org.jetbrains.kotlin:kotlin-stdlib-jdk7</include>
+ <include>org.eclipse.jetty:jetty-server</include>
+ <include>org.eclipse.jetty:jetty-http</include>
+ <include>org.eclipse.jetty:jetty-util</include>
+ <include>org.eclipse.jetty:jetty-io</include>
+ <include>org.eclipse.jetty:jetty-webapp</include>
+ <include>org.eclipse.jetty:jetty-xml</include>
+ <include>org.eclipse.jetty:jetty-servlet</include>
+ <include>org.eclipse.jetty:jetty-security</include>
+ <include>org.eclipse.jetty.websocket:websocket-server</include>
+ <include>org.eclipse.jetty.websocket:websocket-common</include>
+ <include>org.eclipse.jetty.websocket:websocket-api</include>
+ <include>org.eclipse.jetty.websocket:websocket-client</include>
+ <include>org.eclipse.jetty:jetty-client</include>
+ <include>org.eclipse.jetty.websocket:websocket-servlet</include>
+ <include>com.beust:jcommander</include>
+ <include>org.rocksdb:rocksdbjni</include>
+ <include>org.codehaus.jackson:jackson-core-asl</include>
+ <include>org.codehaus.jackson:jackson-mapper-asl</include>
+ <include>com.fasterxml.jackson.core:jackson-annotations</include>
+ <include>com.fasterxml.jackson.core:jackson-core</include>
+ <include>com.fasterxml.jackson.core:jackson-databind</include>
+ <include>org.apache.hbase:hbase-common</include>
+ <include>org.apache.hbase:hbase-client</include>
+ <include>org.apache.hbase:hbase-hadoop-compat</include>
+ <include>org.apache.hbase:hbase-hadoop2-compat</include>
+ <include>org.apache.hbase:hbase-metrics</include>
+ <include>org.apache.hbase:hbase-metrics-api</include>
+ <include>org.apache.hbase:hbase-protocol</include>
+ <include>org.apache.hbase:hbase-protocol-shaded</include>
+ <include>org.apache.hbase:hbase-server</include>
+ <include>org.apache.hbase.thirdparty:hbase-shaded-miscellaneous</include>
+ <include>org.apache.hbase.thirdparty:hbase-shaded-netty</include>
+ <include>org.apache.hbase.thirdparty:hbase-shaded-protobuf</include>
+ <include>org.apache.htrace:htrace-core4</include>
+ <include>com.esotericsoftware:kryo-shaded</include>
+ <include>com.esotericsoftware:minlog</include>
+ <include>commons-io:commons-io</include>
+ <include>log4j:log4j</include>
+ <include>org.objenesis:objenesis</include>
+ <include>org.openjdk.jol:jol-core</include>
+ </includes>
+ </artifactSet>
+ <relocations>
+ <relocation>
+ <pattern>org.apache.commons.io.</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.commons.io.</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.hbase.</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.hbase.</shadedPattern>
+ <excludes>
+ <exclude>org.apache.hadoop.hbase.KeyValue$KeyComparator</exclude>
+ </excludes>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hbase.</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hbase.</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.htrace.</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.htrace.</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.openjdk.jol.</pattern>
+ <shadedPattern>org.apache.hudi.org.openjdk.jol.</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.MetricHistogram</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.MetricHistogram</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.MetricsExecutor</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.MetricsExecutor</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.impl.JmxCacheBuster</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.impl.JmxCacheBuster</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.DefaultMetricsSystemHelper</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.DefaultMetricsSystemHelper</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.DynamicMetricsRegistry</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.DynamicMetricsRegistry</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MetricsExecutorImpl</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MetricsExecutorImpl</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MutableFastCounter</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MutableFastCounter</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MutableHistogram</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MutableHistogram</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MutableRangeHistogram</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MutableRangeHistogram</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MutableSizeHistogram</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MutableSizeHistogram</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.lib.MutableTimeHistogram</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.lib.MutableTimeHistogram</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.util.MetricQuantile</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.util.MetricQuantile</shadedPattern>
+ </relocation>
+ <relocation>
+ <pattern>org.apache.hadoop.metrics2.util.MetricSampleQuantiles</pattern>
+ <shadedPattern>org.apache.hudi.org.apache.hadoop.metrics2.util.MetricSampleQuantiles</shadedPattern>
+ </relocation>
+ </relocations>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-hdfs</artifactId>
+ <version>2.10.1</version>
+ <scope>provided</scope>
+ <exclusions>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>org.mortbay.jetty</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>javax.servlet.jsp</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>javax.servlet</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-common</artifactId>
+ <version>2.10.1</version>
+ <scope>provided</scope>
+ <exclusions>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>org.mortbay.jetty</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>javax.servlet.jsp</groupId>
+ </exclusion>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>javax.servlet</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-client</artifactId>
+ <version>2.10.1</version>
+ <scope>provided</scope>
+ <exclusions>
+ <exclusion>
+ <artifactId>*</artifactId>
+ <groupId>javax.servlet</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ </dependencies>
+ <properties>
+ <skipTests>true</skipTests>
+ <main.basedir>${project.parent.basedir}</main.basedir>
+ <checkstyle.skip>true</checkstyle.skip>
+ </properties>
+</project>
diff --git a/website/docs/deployment.md b/website/docs/deployment.md
index 3236fd5657..f33633ac38 100644
--- a/website/docs/deployment.md
+++ b/website/docs/deployment.md
@@ -29,11 +29,11 @@ With Merge_On_Read Table, Hudi ingestion needs to also take care of compacting d
from varied sources such as DFS, Kafka and DB Changelogs and ingest them to hudi tables. It runs as a spark application in two modes.
To use DeltaStreamer in Spark, the `hudi-utilities-bundle` is required, by adding
-`--packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1` to the `spark-submit` command. From 0.11.0 release, we start
+`--packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1` to the `spark-submit` command. From 0.11.0 release, we start
to provide a new `hudi-utilities-slim-bundle` which aims to exclude dependencies that can cause conflicts and compatibility
issues with different versions of Spark. The `hudi-utilities-slim-bundle` should be used along with a Hudi Spark bundle
corresponding to the Spark version used, e.g.,
-`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.11.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.11.1`,
+`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.12.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.12.1`,
if using `hudi-utilities-bundle` solely in Spark encounters compatibility issues.
- **Run Once Mode** : In this mode, Deltastreamer performs one ingestion round which includes incrementally pulling events from upstream sources and ingesting them to hudi table. Background operations like cleaning old file versions and archiving hoodie timeline are automatically executed as part of the run. For Merge-On-Read tables, Compaction is also run inline as part of ingestion unless disabled by passing the flag "--disable-compaction". By default, Compaction is run inline for eve [...]
@@ -41,7 +41,7 @@ if using `hudi-utilities-bundle` solely in Spark encounters compatibility issues
Here is an example invocation for reading from kafka topic in a single-run mode and writing to Merge On Read table type in a yarn cluster.
```java
-[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1 \
+[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1 \
--master yarn \
--deploy-mode cluster \
--num-executors 10 \
@@ -89,7 +89,7 @@ Here is an example invocation for reading from kafka topic in a single-run mode
Here is an example invocation for reading from kafka topic in a continuous mode and writing to Merge On Read table type in a yarn cluster.
```java
-[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1 \
+[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1 \
--master yarn \
--deploy-mode cluster \
--num-executors 10 \
diff --git a/website/docs/gcp_bigquery.md b/website/docs/gcp_bigquery.md
index 3651f01d15..e7a7f3076b 100644
--- a/website/docs/gcp_bigquery.md
+++ b/website/docs/gcp_bigquery.md
@@ -38,9 +38,9 @@ Below shows an example for running `BigQuerySyncTool` with `HoodieDeltaStreamer`
```shell
spark-submit --master yarn \
--packages com.google.cloud:google-cloud-bigquery:2.10.4 \
---jars /opt/hudi-gcp-bundle-0.11.1.jar \
+--jars /opt/hudi-gcp-bundle-0.12.1.jar \
--class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer \
-/opt/hudi-utilities-bundle_2.12-0.11.1.jar \
+/opt/hudi-utilities-bundle_2.12-0.12.1.jar \
--target-base-path gs://my-hoodie-table/path \
--target-table mytable \
--table-type COPY_ON_WRITE \
diff --git a/website/docs/hoodie_deltastreamer.md b/website/docs/hoodie_deltastreamer.md
index 00300a426f..42b98a2b90 100644
--- a/website/docs/hoodie_deltastreamer.md
+++ b/website/docs/hoodie_deltastreamer.md
@@ -161,7 +161,7 @@ In some cases, you may want to migrate your existing table into Hudi beforehand.
From 0.11.0 release, we start to provide a new `hudi-utilities-slim-bundle` which aims to exclude dependencies that can
cause conflicts and compatibility issues with different versions of Spark. The `hudi-utilities-slim-bundle` should be
used along with a Hudi Spark bundle corresponding the Spark version used to make utilities work with Spark, e.g.,
-`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.11.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.11.1`,
+`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.12.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.12.1`,
if using `hudi-utilities-bundle` solely to run `HoodieDeltaStreamer` in Spark encounters compatibility issues.
### MultiTableDeltaStreamer
diff --git a/website/docs/syncing_datahub.md b/website/docs/syncing_datahub.md
index eacc8a7e80..37c279f390 100644
--- a/website/docs/syncing_datahub.md
+++ b/website/docs/syncing_datahub.md
@@ -36,9 +36,9 @@ the classpath.
```shell
spark-submit --master yarn \
---jars /opt/hudi-datahub-sync-bundle-0.11.1.jar \
+--jars /opt/hudi-datahub-sync-bundle-0.12.1.jar \
--class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer \
-/opt/hudi-utilities-bundle_2.12-0.11.1.jar \
+/opt/hudi-utilities-bundle_2.12-0.12.1.jar \
--target-table mytable \
# ... other HoodieDeltaStreamer's configs
--enable-sync \
diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index f3bff36771..66490d2cd5 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -98,11 +98,11 @@ module.exports = {
},
{
from: ['/docs/releases', '/docs/next/releases'],
- to: '/releases/release-0.12.0',
+ to: '/releases/release-0.12.1',
},
{
from: ['/releases'],
- to: '/releases/release-0.12.0',
+ to: '/releases/release-0.12.1',
},
],
},
@@ -263,7 +263,7 @@ module.exports = {
},
{
label: 'Releases',
- to: '/releases/release-0.12.0',
+ to: '/releases/release-0.12.1',
},
{
label: 'Download',
@@ -435,8 +435,8 @@ module.exports = {
path: 'next',
banner: 'unreleased',
},
- '0.12.0': {
- label: '0.12.0',
+ '0.12.1': {
+ label: '0.12.1',
path: '',
}
},
diff --git a/website/releases/download.md b/website/releases/download.md
index de4ecb0bcb..d6d15057b0 100644
--- a/website/releases/download.md
+++ b/website/releases/download.md
@@ -6,6 +6,10 @@ toc: true
last_modified_at: 2019-12-30T15:59:57-04:00
---
+### Release 0.12.1
+* Source Release : [Apache Hudi 0.12.1 Source Release](https://www.apache.org/dyn/closer.lua/hudi/0.12.1/hudi-0.12.1.src.tgz) ([asc](https://downloads.apache.org/hudi/0.12.1/hudi-0.12.1.src.tgz.asc), [sha512](https://downloads.apache.org/hudi/0.12.1/hudi-0.12.1.src.tgz.sha512))
+* Release Note : ([Release Note for Apache Hudi 0.12.1](/releases/release-0.12.1))
+
### Release 0.12.0
* Source Release : [Apache Hudi 0.12.0 Source Release](https://www.apache.org/dyn/closer.lua/hudi/0.12.0/hudi-0.12.0.src.tgz) ([asc](https://downloads.apache.org/hudi/0.12.0/hudi-0.12.0.src.tgz.asc), [sha512](https://downloads.apache.org/hudi/0.12.0/hudi-0.12.0.src.tgz.sha512))
* Release Note : ([Release Note for Apache Hudi 0.12.0](/releases/release-0.12.0))
diff --git a/website/releases/older-releases.md b/website/releases/older-releases.md
index 9f45874dde..4fbe9ce65d 100644
--- a/website/releases/older-releases.md
+++ b/website/releases/older-releases.md
@@ -1,6 +1,6 @@
---
title: "Older Releases"
-sidebar_position: 9
+sidebar_position: 11
layout: releases
toc: true
last_modified_at: 2020-05-28T08:40:00-07:00
diff --git a/website/releases/release-0.10.0.md b/website/releases/release-0.10.0.md
index 88074e68db..8c142b861d 100644
--- a/website/releases/release-0.10.0.md
+++ b/website/releases/release-0.10.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.10.0"
-sidebar_position: 6
+sidebar_position: 7
layout: releases
toc: true
last_modified_at: 2021-12-10T22:07:00+08:00
diff --git a/website/releases/release-0.10.1.md b/website/releases/release-0.10.1.md
index dd237ee167..9740a1cfbe 100644
--- a/website/releases/release-0.10.1.md
+++ b/website/releases/release-0.10.1.md
@@ -1,6 +1,6 @@
---
title: "Release 0.10.1"
-sidebar_position: 5
+sidebar_position: 6
layout: releases
toc: true
last_modified_at: 2022-01-27T22:07:00+08:00
diff --git a/website/releases/release-0.11.0.md b/website/releases/release-0.11.0.md
index 88e60d367a..625e76149a 100644
--- a/website/releases/release-0.11.0.md
+++ b/website/releases/release-0.11.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.11.0"
-sidebar_position: 4
+sidebar_position: 5
layout: releases
toc: true
last_modified_at: 2022-01-27T22:07:00+08:00
diff --git a/website/releases/release-0.11.1.md b/website/releases/release-0.11.1.md
index c9da962ea7..6788ae2bfe 100644
--- a/website/releases/release-0.11.1.md
+++ b/website/releases/release-0.11.1.md
@@ -1,6 +1,6 @@
---
title: "Release 0.11.1"
-sidebar_position: 3
+sidebar_position: 4
layout: releases
toc: true
last_modified_at: 2022-06-19T23:30:00-07:00
diff --git a/website/releases/release-0.12.0.md b/website/releases/release-0.12.0.md
index c28914ca1f..a384681a8e 100644
--- a/website/releases/release-0.12.0.md
+++ b/website/releases/release-0.12.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.12.0"
-sidebar_position: 2
+sidebar_position: 3
layout: releases
toc: true
last_modified_at: 2022-08-17T10:30:00+05:30
diff --git a/website/releases/release-0.12.1.md b/website/releases/release-0.12.1.md
new file mode 100644
index 0000000000..4db8a5a212
--- /dev/null
+++ b/website/releases/release-0.12.1.md
@@ -0,0 +1,58 @@
+---
+title: "Release 0.12.1"
+sidebar_position: 2
+layout: releases
+toc: true
+last_modified_at: 2022-08-17T10:30:00+05:30
+---
+# [Release 0.12.1](https://github.com/apache/hudi/releases/tag/release-0.12.1) ([docs](/docs/quick-start-guide))
+
+## Migration Guide
+
+* This release (0.12.1) does not introduce any new table version, thus no migration is needed if you are on 0.12.0.
+* If migrating from an older release, please check the migration guide from the previous release notes, specifically
+ the upgrade instructions in [0.6.0](/releases/older-releases#migration-guide-for-this-release),
+ [0.9.0](/releases/release-0.9.0#migration-guide-for-this-release), [0.10.0](/releases/release-0.10.0#migration-guide),
+ [0.11.0](/releases/release-0.11.0#migration-guide), and [0.12.0](/releases/release-0.12.0#migration-guide).
+
+
+## Release Highlights
+
+### Improve Hudi Cli
+
+Add command to repair deprecated partition, rename partition and trace file group through a range of commits.
+
+### Fix invalid record key stats in Parquet metadata
+
+Crux of the problem was that min/max statistics for the record keys were computed incorrectly during (Spark-specific) row-writing
+Bulk Insert operation affecting Key Range Pruning flow w/in Hoodie Bloom Index tagging sequence, resulting into updated records being incorrectly tagged
+as "inserts" and not as "updates", leading to duplicated records in the table.
+
+If all of the following is applicable to you:
+
+1. Using Spark as an execution engine
+2. Using Bulk Insert (using row-writing
+ <https://hudi.apache.org/docs/next/configurations#hoodiedatasourcewriterowwriterenable>,
+ enabled *by default*)
+3. Using Bloom Index (with range-pruning
+ <https://hudi.apache.org/docs/next/basic_configurations/#hoodiebloomindexprunebyranges>
+ enabled, enabled *by default*) for "UPSERT" operations
+
+Recommended to upgrading to 0.12.1 to avoid getting duplicate records in your pipeline.
+
+### Bug fixes
+
+0.12.1 release is mainly intended for bug fixes and stability. The fixes span across many components, including
+* DeltaStreamer
+* Table config
+* Table services
+* Metadata table
+* Spark SQL support
+* Presto support
+* Hive Sync
+* Flink engine
+* Unit, functional, integration tests and CI
+
+## Raw Release Notes
+
+The raw release notes are available [here](https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12322822&version=12352182)
\ No newline at end of file
diff --git a/website/releases/release-0.7.0.md b/website/releases/release-0.7.0.md
index b8a012ca0c..ba1210de74 100644
--- a/website/releases/release-0.7.0.md
+++ b/website/releases/release-0.7.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.7.0"
-sidebar_position: 9
+sidebar_position: 10
layout: releases
toc: true
last_modified_at: 2020-05-28T08:40:00-07:00
diff --git a/website/releases/release-0.8.0.md b/website/releases/release-0.8.0.md
index ba28871ee2..08f9910600 100644
--- a/website/releases/release-0.8.0.md
+++ b/website/releases/release-0.8.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.8.0"
-sidebar_position: 8
+sidebar_position: 9
layout: releases
toc: true
last_modified_at: 2020-05-28T08:40:00-07:00
diff --git a/website/releases/release-0.9.0.md b/website/releases/release-0.9.0.md
index 9d3eb79b2e..31d5d143cd 100644
--- a/website/releases/release-0.9.0.md
+++ b/website/releases/release-0.9.0.md
@@ -1,6 +1,6 @@
---
title: "Release 0.9.0"
-sidebar_position: 7
+sidebar_position: 8
layout: releases
toc: true
last_modified_at: 2021-08-26T08:40:00-07:00
diff --git a/website/versioned_docs/version-0.12.1/azure_hoodie.md b/website/versioned_docs/version-0.12.1/azure_hoodie.md
new file mode 100644
index 0000000000..f28ec609c7
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/azure_hoodie.md
@@ -0,0 +1,50 @@
+---
+title: Microsoft Azure
+keywords: [ hudi, hive, azure, spark, presto]
+summary: In this page, we go over how to configure Hudi with Azure filesystem.
+last_modified_at: 2020-05-25T19:00:57-04:00
+---
+In this page, we explain how to use Hudi on Microsoft Azure.
+
+## Disclaimer
+
+This page is maintained by the Hudi community.
+If the information is inaccurate or you have additional information to add.
+Please feel free to create a JIRA ticket. Contribution is highly appreciated.
+
+## Supported Storage System
+
+There are two storage systems support Hudi .
+
+- Azure Blob Storage
+- Azure Data Lake Gen 2
+
+## Verified Combination of Spark and storage system
+
+#### HDInsight Spark2.4 on Azure Data Lake Storage Gen 2
+This combination works out of the box. No extra config needed.
+
+#### Databricks Spark2.4 on Azure Data Lake Storage Gen 2
+- Import Hudi jar to databricks workspace
+
+- Mount the file system to dbutils.
+ ```scala
+ dbutils.fs.mount(
+ source = "abfss://xxx@xxx.dfs.core.windows.net",
+ mountPoint = "/mountpoint",
+ extraConfigs = configs)
+ ```
+- When writing Hudi dataset, use abfss URL
+ ```scala
+ inputDF.write
+ .format("org.apache.hudi")
+ .options(opts)
+ .mode(SaveMode.Append)
+ .save("abfss://<<storage-account>>.dfs.core.windows.net/hudi-tables/customer")
+ ```
+- When reading Hudi dataset, use the mounting point
+ ```scala
+ spark.read
+ .format("org.apache.hudi")
+ .load("/mountpoint/hudi-tables/customer")
+ ```
diff --git a/website/versioned_docs/version-0.12.1/basic_configurations.md b/website/versioned_docs/version-0.12.1/basic_configurations.md
new file mode 100644
index 0000000000..8230e2a2fc
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/basic_configurations.md
@@ -0,0 +1,884 @@
+---
+title: Basic Configurations
+toc: true
+---
+
+This page covers the basic configurations you may use to write/read Hudi tables. This page only features a subset of the
+most frequently used configurations. For a full list of all configs, please visit the [All Configurations](/docs/configurations) page.
+
+- [**Spark Datasource Configs**](#SPARK_DATASOURCE): These configs control the Hudi Spark Datasource, providing ability to define keys/partitioning, pick out the write operation, specify how to merge records or choosing query type to read.
+- [**Flink Sql Configs**](#FLINK_SQL): These configs control the Hudi Flink SQL source/sink connectors, providing ability to define record keys, pick out the write operation, specify how to merge records, enable/disable asynchronous compaction or choosing query type to read.
+- [**Write Client Configs**](#WRITE_CLIENT): Internally, the Hudi datasource uses a RDD based HoodieWriteClient API to actually perform writes to storage. These configs provide deep control over lower level aspects like file sizing, compression, parallelism, compaction, write schema, cleaning etc. Although Hudi provides sane defaults, from time-time these configs may need to be tweaked to optimize for specific workloads.
+- [**Metrics Configs**](#METRICS): These set of configs are used to enable monitoring and reporting of key Hudi stats and metrics.
+- [**Record Payload Config**](#RECORD_PAYLOAD): This is the lowest level of customization offered by Hudi. Record payloads define how to produce new values to upsert based on incoming new record and stored old record. Hudi provides default implementations such as OverwriteWithLatestAvroPayload which simply update table with the latest/last-written record. This can be overridden to a custom class extending HoodieRecordPayload class, on both datasource and WriteClient levels.
+
+## Spark Datasource Configs {#SPARK_DATASOURCE}
+These configs control the Hudi Spark Datasource, providing ability to define keys/partitioning, pick out the write operation, specify how to merge records or choosing query type to read.
+
+### Read Options {#Read-Options}
+
+Options useful for reading tables via `read.format.option(...)`
+
+
+`Config Class`: org.apache.hudi.DataSourceOptions.scala<br></br>
+> #### hoodie.datasource.query.type
+> Whether data needs to be read, in incremental mode (new data since an instantTime) (or) Read Optimized mode (obtain latest view, based on base files) (or) Snapshot mode (obtain latest view, by merging base and (if any) log files)<br></br>
+> **Default Value**: snapshot (Optional)<br></br>
+> `Config Param: QUERY_TYPE`<br></br>
+
+---
+
+### Write Options {#Write-Options}
+
+You can pass down any of the WriteClient level configs directly using `options()` or `option(k,v)` methods.
+
+```java
+inputDF.write()
+.format("org.apache.hudi")
+.options(clientOpts) // any of the Hudi client opts can be passed in as well
+.option(DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY(), "_row_key")
+.option(DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY(), "partition")
+.option(DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY(), "timestamp")
+.option(HoodieWriteConfig.TABLE_NAME, tableName)
+.mode(SaveMode.Append)
+.save(basePath);
+```
+
+Options useful for writing tables via `write.format.option(...)`
+
+
+`Config Class`: org.apache.hudi.DataSourceOptions.scala<br></br>
+
+> #### hoodie.datasource.write.operation
+> Whether to do upsert, insert or bulkinsert for the write operation. Use bulkinsert to load new data into a table, and there after use upsert/insert. bulk insert uses a disk based write path to scale to load large inputs without need to cache it.<br></br>
+> **Default Value**: upsert (Optional)<br></br>
+> `Config Param: OPERATION`<br></br>
+
+---
+
+> #### hoodie.datasource.write.table.type
+> The table type for the underlying data, for this write. This can’t change between writes.<br></br>
+> **Default Value**: COPY_ON_WRITE (Optional)<br></br>
+> `Config Param: TABLE_TYPE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.table.name
+> Table name for the datasource write. Also used to register the table into meta stores.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.recordkey.field
+> Record key field. Value to be used as the `recordKey` component of `HoodieKey`.
+Actual value will be obtained by invoking .toString() on the field value. Nested fields can be specified using
+the dot notation eg: `a.b.c`<br></br>
+> **Default Value**: uuid (Optional)<br></br>
+> `Config Param: RECORDKEY_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.field
+> Partition path field. Value to be used at the partitionPath component of HoodieKey. Actual value ontained by invoking .toString()<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITIONPATH_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.class
+> Key generator class, that implements `org.apache.hudi.keygen.KeyGenerator`<br></br>
+> **Default Value**: org.apache.hudi.keygen.SimpleKeyGenerator (Optional)<br></br>
+> `Config Param: KEYGENERATOR_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.precombine.field
+> Field used in preCombining before actual write. When two records have the same key value, we will pick the one with the largest value for the precombine field, determined by Object.compareTo(..)<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: PRECOMBINE_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.write.payload.class
+> Payload class used. Override this, if you like to roll your own merge logic, when upserting/inserting. This will render any value set for PRECOMBINE_FIELD_OPT_VAL in-effective<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.urlencode
+> Should we url encode the partition path value, before creating the folder structure.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: URL_ENCODE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.enable
+> When set to true, register/sync the table to Apache Hive metastore<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.mode
+> Mode to choose for Hive ops. Valid values are hms, jdbc and hiveql.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_SYNC_MODE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Flag to indicate whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.partition_fields
+> Field in the table to use for determining hive partition columns.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: HIVE_PARTITION_FIELDS`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.partition_extractor_class
+> Class which implements PartitionValueExtractor to extract the partition values, default 'MultiPartKeysValueExtractor'.<br></br>
+> **Default Value**: org.apache.hudi.hive.MultiPartKeysValueExtractor (Optional)<br></br>
+> `Config Param: HIVE_PARTITION_EXTRACTOR_CLASS`<br></br>
+
+---
+
+## Flink Sql Configs {#FLINK_SQL}
+These configs control the Hudi Flink SQL source/sink connectors, providing ability to define record keys, pick out the write operation, specify how to merge records, enable/disable asynchronous compaction or choosing query type to read.
+
+### Flink Options {#Flink-Options}
+
+> #### path
+> Base path for the target hoodie table.
+The path would be created if it does not exist,
+otherwise a Hoodie table expects to be initialized successfully<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PATH`<br></br>
+
+---
+
+> #### hoodie.table.name
+> Table name to register to Hive metastore<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_NAME`<br></br>
+
+---
+
+
+> #### table.type
+> Type of table to write. COPY_ON_WRITE (or) MERGE_ON_READ<br></br>
+> **Default Value**: COPY_ON_WRITE (Optional)<br></br>
+> `Config Param: TABLE_TYPE`<br></br>
+
+---
+
+> #### write.operation
+> The write operation, that this write should do<br></br>
+> **Default Value**: upsert (Optional)<br></br>
+> `Config Param: OPERATION`<br></br>
+
+---
+
+> #### write.tasks
+> Parallelism of tasks that do actual write, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: WRITE_TASKS`<br></br>
+
+---
+
+> #### write.bucket_assign.tasks
+> Parallelism of tasks that do bucket assign, default is the parallelism of the execution environment<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BUCKET_ASSIGN_TASKS`<br></br>
+
+---
+
+> #### write.precombine
+> Flag to indicate whether to drop duplicates before insert/upsert.
+By default these cases will accept duplicates, to gain extra performance:
+1) insert operation;
+2) upsert for MOR table, the MOR table deduplicate on reading<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: PRE_COMBINE`<br></br>
+
+---
+
+> #### read.tasks
+> Parallelism of tasks that do actual read, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: READ_TASKS`<br></br>
+
+---
+
+> #### read.start-commit
+> Start commit instant for reading, the commit time format should be 'yyyyMMddHHmmss', by default reading from the latest instant for streaming read<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: READ_START_COMMIT`<br></br>
+
+---
+
+> #### read.streaming.enabled
+> Whether to read as streaming source, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: READ_AS_STREAMING`<br></br>
+
+---
+
+> #### compaction.tasks
+> Parallelism of tasks that do actual compaction, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: COMPACTION_TASKS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING`<br></br>
+
+---
+
+> #### hive_sync.enable
+> Asynchronously sync Hive meta to HMS, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_ENABLED`<br></br>
+
+---
+
+> #### hive_sync.mode
+> Mode to choose for Hive ops. Valid values are hms, jdbc and hiveql, default 'jdbc'<br></br>
+> **Default Value**: jdbc (Optional)<br></br>
+> `Config Param: HIVE_SYNC_MODE`<br></br>
+
+---
+
+> #### hive_sync.table
+> Table name for hive sync, default 'unknown'<br></br>
+> **Default Value**: unknown (Optional)<br></br>
+> `Config Param: HIVE_SYNC_TABLE`<br></br>
+
+---
+
+> #### hive_sync.db
+> Database name for hive sync, default 'default'<br></br>
+> **Default Value**: default (Optional)<br></br>
+> `Config Param: HIVE_SYNC_DB`<br></br>
+
+---
+
+> #### hive_sync.partition_extractor_class
+> Tool to extract the partition value from HDFS path, default 'SlashEncodedDayPartitionValueExtractor'<br></br>
+> **Default Value**: org.apache.hudi.hive.SlashEncodedDayPartitionValueExtractor (Optional)<br></br>
+> `Config Param: HIVE_SYNC_PARTITION_EXTRACTOR_CLASS_NAME`<br></br>
+
+---
+> #### hive_sync.metastore.uris
+> Metastore uris for hive sync, default ''<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: HIVE_SYNC_METASTORE_URIS`<br></br>
+
+---
+
+
+## Write Client Configs {#WRITE_CLIENT}
+Internally, the Hudi datasource uses a RDD based HoodieWriteClient API to actually perform writes to storage. These configs provide deep control over lower level aspects like file sizing, compression, parallelism, compaction, write schema, cleaning etc. Although Hudi provides sane defaults, from time-time these configs may need to be tweaked to optimize for specific workloads.
+
+### Storage Configs
+
+Configurations that control aspects around writing, sizing, reading base and log files.
+
+`Config Class`: org.apache.hudi.config.HoodieStorageConfig<br></br>
+
+> #### write.parquet.block.size
+> Parquet RowGroup size. It's recommended to make this large enough that scan costs can be amortized by packing enough column values into a single row group.<br></br>
+> **Default Value**: 120 (Optional)<br></br>
+> `Config Param: WRITE_PARQUET_BLOCK_SIZE`<br></br>
+
+---
+
+> #### write.parquet.max.file.size
+> Target size for parquet files produced by Hudi write phases. For DFS, this needs to be aligned with the underlying filesystem block size for optimal performance.<br></br>
+> **Default Value**: 120 (Optional)<br></br>
+> `Config Param: WRITE_PARQUET_MAX_FILE_SIZE`<br></br>
+
+---
+
+### Metadata Configs
+
+Configurations used by the Hudi Metadata Table. This table maintains the metadata about a given Hudi table (e.g file listings) to avoid overhead of accessing cloud storage, during queries.
+
+`Config Class`: org.apache.hudi.common.config.HoodieMetadataConfig<br></br>
+
+> #### hoodie.metadata.enable
+> Enable the internal metadata table which serves table metadata like level file listings<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+### Write Configurations
+
+Configurations that control write behavior on Hudi tables. These can be directly passed down from even higher level frameworks (e.g Spark datasources, Flink sink) and utilities (e.g DeltaStreamer).
+
+`Config Class`: org.apache.hudi.config.HoodieWriteConfig<br></br>
+
+> #### hoodie.combine.before.upsert
+> When upserted records share same key, controls whether they should be first combined (i.e de-duplicated) before writing to storage. This should be turned off only if you are absolutely certain that there are no duplicates incoming, otherwise it can lead to duplicate keys and violate the uniqueness guarantees.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_UPSERT`<br></br>
+
+---
+
+> #### hoodie.write.markers.type
+> Marker type to use. Two modes are supported: - DIRECT: individual marker file corresponding to each data file is directly created by the writer. - TIMELINE_SERVER_BASED: marker operations are all handled at the timeline service which serves as a proxy. New marker entries are batch processed and stored in a limited number of underlying files for efficiency. If HDFS is used or timeline server is disabled, DIRECT markers are used as fallback even if this is configured. For Spark structure [...]
+> **Default Value**: TIMELINE_SERVER_BASED (Optional)<br></br>
+> `Config Param: MARKERS_TYPE`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.insert.shuffle.parallelism
+> Parallelism for inserting records into the table. Inserts can shuffle data before writing to tune file sizes and optimize the storage layout.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: INSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.rollback.parallelism
+> Parallelism for rollback of commits. Rollbacks perform delete of files or logging delete blocks to file groups on storage in parallel.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: ROLLBACK_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.combine.before.delete
+> During delete operations, controls whether we should combine deletes (and potentially also upserts) before writing to storage.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_DELETE`<br></br>
+
+---
+
+> #### hoodie.combine.before.insert
+> When inserted records share same key, controls whether they should be first combined (i.e de-duplicated) before writing to storage. When set to true the
+> precombine field value is used to reduce all records that share the same key. <br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_INSERT`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.shuffle.parallelism
+> For large initial imports using bulk_insert operation, controls the parallelism to use for sort modes or custom partitioning done before writing records to the table.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: BULKINSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.delete.shuffle.parallelism
+> Parallelism used for “delete” operation. Delete operations also perform shuffles, similar to upsert operation.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: DELETE_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.sort.mode
+> Sorting modes to use for sorting records for bulk insert. This is used when user hoodie.bulkinsert.user.defined.partitioner.class is not configured. Available values are - GLOBAL_SORT: this ensures best file sizes, with lowest memory overhead at cost of sorting. PARTITION_SORT: Strikes a balance by only sorting within a partition, still keeping the memory overhead of writing lowest and best effort file sizing. NONE: No sorting. Fastest and matches `spark.write.parquet()` in terms of nu [...]
+> **Default Value**: GLOBAL_SORT (Optional)<br></br>
+> `Config Param: BULK_INSERT_SORT_MODE`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server
+> When true, spins up an instance of the timeline server (meta server that serves cached file listings, statistics),running on each writer's driver process, accepting requests during the write from executors.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_ENABLE`<br></br>
+
+---
+
+> #### hoodie.upsert.shuffle.parallelism
+> Parallelism to use for upsert operation on the table. Upserts can shuffle data to perform index lookups, file sizing, bin packing records optimally into file groups.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: UPSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.rollback.using.markers
+> Enables a more efficient mechanism for rollbacks based on the marker files generated during the writes. Turned on by default.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ROLLBACK_USING_MARKERS_ENABLE`<br></br>
+
+---
+
+> #### hoodie.finalize.write.parallelism
+> Parallelism for the write finalization internal operation, which involves removing any partially written files from lake storage, before committing the write. Reduce this value, if the high number of tasks incur delays for smaller tables or low latency writes.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: FINALIZE_WRITE_PARALLELISM_VALUE`<br></br>
+
+---
+
+### Compaction Configs {#Compaction-Configs}
+
+Configurations that control compaction (merging of log files onto a new base files).
+
+`Config Class`: org.apache.hudi.config.HoodieCompactionConfig<br></br>
+> #### hoodie.compaction.lazy.block.read
+> When merging the delta log files, this config helps to choose whether the log blocks should be read lazily or not. Choose true to use lazy block reading (low memory usage, but incurs seeks to each block header) or false for immediate block read (higher memory usage)<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMPACTION_LAZY_BLOCK_READ_ENABLE`<br></br>
+
+---
+
+> #### hoodie.parquet.small.file.limit
+> During upsert operation, we opportunistically expand existing small files on storage, instead of writing new files, to keep number of files to an optimum. This config sets the file size limit below which a file on storage becomes a candidate to be selected as such a `small file`. By default, treat any file <= 100MB as a small file. Also note that if this set <= 0, will not try to get small files and directly write new files<br></br>
+> **Default Value**: 104857600 (Optional)<br></br>
+> `Config Param: PARQUET_SMALL_FILE_LIMIT`<br></br>
+
+---
+
+> #### hoodie.compaction.strategy
+> Compaction strategy decides which file groups are picked up for compaction during each compaction run. By default. Hudi picks the log file with most accumulated unmerged data<br></br>
+> **Default Value**: org.apache.hudi.table.action.compact.strategy.LogFileSizeBasedCompactionStrategy (Optional)<br></br>
+> `Config Param: COMPACTION_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.record.size.estimate
+> The average record size. If not explicitly specified, hudi will compute the record size estimate compute dynamically based on commit metadata. This is critical in computing the insert parallelism and bin-packing inserts into small files.<br></br>
+> **Default Value**: 1024 (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_RECORD_SIZE_ESTIMATE`<br></br>
+
+---
+
+> #### hoodie.compact.inline.max.delta.seconds
+> Number of elapsed seconds after the last compaction, before scheduling a new one.<br></br>
+> **Default Value**: 3600 (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_TIME_DELTA_SECONDS`<br></br>
+
+---
+
+> #### hoodie.compaction.target.io
+> Amount of MBs to spend during compaction run for the LogFileSizeBasedCompactionStrategy. This value helps bound ingestion latency while compaction is run inline mode.<br></br>
+> **Default Value**: 512000 (Optional)<br></br>
+> `Config Param: TARGET_IO_PER_COMPACTION_IN_MB`<br></br>
+
+---
+
+> #### hoodie.compaction.logfile.size.threshold
+> Only if the log file size is greater than the threshold in bytes, the file group will be compacted.<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: COMPACTION_LOG_FILE_SIZE_THRESHOLD`<br></br>
+
+---
+
+> #### hoodie.compaction.preserve.commit.metadata
+> When rewriting data, preserves existing hoodie_commit_time<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PRESERVE_COMMIT_METADATA`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.insert.auto.split
+> Config to control whether we control insert split sizes automatically based on average record sizes. It's recommended to keep this turned on, since hand tuning is otherwise extremely cumbersome.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_AUTO_SPLIT_INSERTS`<br></br>
+
+---
+
+> #### hoodie.compact.inline.max.delta.commits
+> Number of delta commits after the last compaction, before scheduling of a new compaction is attempted.<br></br>
+> **Default Value**: 5 (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_NUM_DELTA_COMMITS`<br></br>
+
+---
+
+> #### hoodie.record.size.estimation.threshold
+> We use the previous commits' metadata to calculate the estimated record size and use it to bin pack records into partitions. If the previous commit is too small to make an accurate estimation, Hudi will search commits in the reverse order, until we find a commit that has totalBytesWritten larger than (PARQUET_SMALL_FILE_LIMIT_BYTES * this_threshold)<br></br>
+> **Default Value**: 1.0 (Optional)<br></br>
+> `Config Param: RECORD_SIZE_ESTIMATION_THRESHOLD`<br></br>
+
+---
+
+> #### hoodie.compact.inline.trigger.strategy
+> Controls how compaction scheduling is triggered, by time or num delta commits or combination of both. Valid options: NUM_COMMITS,NUM_COMMITS_AFTER_LAST_REQUEST,TIME_ELAPSED,NUM_AND_TIME,NUM_OR_TIME<br></br>
+> **Default Value**: NUM_COMMITS (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_TRIGGER_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.compaction.reverse.log.read
+> HoodieLogFormatReader reads a logfile in the forward direction starting from pos=0 to pos=file_length. If this config is set to true, the reader reads the logfile in reverse direction, from pos=file_length to pos=0<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: COMPACTION_REVERSE_LOG_READ_ENABLE`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.insert.split.size
+> Number of inserts assigned for each partition/bucket for writing. We based the default on writing out 100MB files, with at least 1kb records (100K records per file), and over provision to 500K. As long as auto-tuning of splits is turned on, this only affects the first write, where there is no history to learn record sizes from.<br></br>
+> **Default Value**: 500000 (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_INSERT_SPLIT_SIZE`<br></br>
+
+---
+
+> #### hoodie.compact.schedule.inline
+> When set to true, compaction service will be attempted for inline scheduling after each write. Users have to ensure they have a separate job to run async compaction(execution) for the one scheduled by this writer. Users can choose to set both `hoodie.compact.inline` and `hoodie.compact.schedule.inline` to false and have both scheduling and execution triggered by any async process. But if `hoodie.compact.inline` is set to false, and `hoodie.compact.schedule.inline` is set to true, regul [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SCHEDULE_INLINE_COMPACT`<br></br>
+
+---
+
+> #### hoodie.compaction.daybased.target.partitions
+> Used by org.apache.hudi.io.compact.strategy.DayBasedCompactionStrategy to denote the number of latest partitions to compact during a compaction run.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: TARGET_PARTITIONS_PER_DAYBASED_COMPACTION`<br></br>
+
+---
+
+> #### hoodie.compact.inline
+> When set to true, compaction service is triggered after each write. While being simpler operationally, this adds extra latency on the write path.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INLINE_COMPACT`<br></br>
+
+---
+
+### Clean Configs {#Clean-Configs}
+
+Cleaning (reclamation of older/unused file groups/slices).
+
+`Config Class`: org.apache.hudi.config.HoodieCleanConfig<br></br>
+> #### hoodie.cleaner.fileversions.retained
+> When KEEP_LATEST_FILE_VERSIONS cleaning policy is used, the minimum number of file slices to retain in each file group, during cleaning.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: CLEANER_FILE_VERSIONS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.clean.max.commits
+> Number of commits after the last clean operation, before scheduling of a new clean is attempted.<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: CLEAN_MAX_COMMITS`<br></br>
+
+---
+
+> #### hoodie.clean.allow.multiple
+> Allows scheduling/executing multiple cleans by enabling this config. If users prefer to strictly ensure clean requests should be mutually exclusive, .i.e. a 2nd clean will not be scheduled if another clean is not yet completed to avoid repeat cleaning of same files, they might want to disable this config.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ALLOW_MULTIPLE_CLEANS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clean.automatic
+> When enabled, the cleaner table service is invoked immediately after each commit, to delete older file slices. It's recommended to enable this, to ensure metadata and data storage growth is bounded.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: AUTO_CLEAN`<br></br>
+
+---
+
+> #### hoodie.cleaner.parallelism
+> Parallelism for the cleaning operation. Increase this if cleaning becomes slow.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: CLEANER_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.cleaner.incremental.mode
+> When enabled, the plans for each cleaner service run is computed incrementally off the events in the timeline, since the last cleaner run. This is much more efficient than obtaining listings for the full table for each planning (even with a metadata table).<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: CLEANER_INCREMENTAL_MODE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.clean.async
+> Only applies when hoodie.clean.automatic is turned on. When turned on runs cleaner async with writing, which can speed up overall write performance.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_CLEAN`<br></br>
+
+---
+
+> #### hoodie.clean.trigger.strategy
+> Controls how cleaning is scheduled. Valid options: NUM_COMMITS<br></br>
+> **Default Value**: NUM_COMMITS (Optional)<br></br>
+> `Config Param: CLEAN_TRIGGER_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.cleaner.delete.bootstrap.base.file
+> When set to true, cleaner also deletes the bootstrap base file when it's skeleton base file is cleaned. Turn this to true, if you want to ensure the bootstrap dataset storage is reclaimed over time, as the table receives updates/deletes. Another reason to turn this on, would be to ensure data residing in bootstrap base files are also physically deleted, to comply with data privacy enforcement processes.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: CLEANER_BOOTSTRAP_BASE_FILE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.cleaner.hours.retained
+> Number of hours for which commits need to be retained. This config provides a more flexible option ascompared to number of commits retained for cleaning service. Setting this property ensures all the files, but the latest in a file group, corresponding to commits with commit times older than the configured number of hours to be retained are cleaned.<br></br>
+> **Default Value**: 24 (Optional)<br></br>
+> `Config Param: CLEANER_HOURS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.cleaner.commits.retained
+> Number of commits to retain, without cleaning. This will be retained for num_of_commits * time_between_commits (scheduled). This also directly translates into how much data retention the table supports for incremental queries.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: CLEANER_COMMITS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.cleaner.policy.failed.writes
+> Cleaning policy for failed writes to be used. Hudi will delete any files written by failed writes to re-claim space. Choose to perform this rollback of failed writes eagerly before every writer starts (only supported for single writer) or lazily by the cleaner (required for multi-writers)<br></br>
+> **Default Value**: EAGER (Optional)<br></br>
+> `Config Param: FAILED_WRITES_CLEANER_POLICY`<br></br>
+
+---
+
+> #### hoodie.cleaner.policy
+> Cleaning policy to be used. The cleaner service deletes older file slices files to re-claim space. By default, cleaner spares the file slices written by the last N commits, determined by hoodie.cleaner.commits.retained Long running query plans may often refer to older file slices and will break if those are cleaned, before the query has had a chance to run. So, it is good to make sure that the data is retained for more than the maximum query execution time<br></br>
+> **Default Value**: KEEP_LATEST_COMMITS (Optional)<br></br>
+> `Config Param: CLEANER_POLICY`<br></br>
+
+---
+
+### Archival Configs {#Archival-Configs}
+
+Configurations that control archival.
+
+`Config Class`: org.apache.hudi.config.HoodieArchivalConfig<br></br>
+> #### hoodie.archive.merge.small.file.limit.bytes
+> This config sets the archive file size limit below which an archive file becomes a candidate to be selected as such a small file.<br></br>
+> **Default Value**: 20971520 (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_SMALL_FILE_LIMIT_BYTES`<br></br>
+
+---
+
+> #### hoodie.keep.max.commits
+> Archiving service moves older entries from timeline into an archived log after each write, to keep the metadata overhead constant, even as the table size grows.This config controls the maximum number of instants to retain in the active timeline. <br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: MAX_COMMITS_TO_KEEP`<br></br>
+
+---
+
+> #### hoodie.archive.merge.enable
+> When enable, hoodie will auto merge several small archive files into larger one. It's useful when storage scheme doesn't support append operation.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.archive.automatic
+> When enabled, the archival table service is invoked immediately after each commit, to archive commits if we cross a maximum value of commits. It's recommended to enable this, to ensure number of active commits is bounded.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: AUTO_ARCHIVE`<br></br>
+
+---
+
+> #### hoodie.archive.delete.parallelism
+> Parallelism for deleting archived hoodie commits.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: DELETE_ARCHIVED_INSTANT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.archive.beyond.savepoint
+> If enabled, archival will proceed beyond savepoint, skipping savepoint commits. If disabled, archival will stop at the earliest savepoint commit.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ARCHIVE_BEYOND_SAVEPOINT`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.commits.archival.batch
+> Archiving of instants is batched in best-effort manner, to pack more instants into a single archive log. This config controls such archival batch size.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: COMMITS_ARCHIVAL_BATCH_SIZE`<br></br>
+
+---
+
+> #### hoodie.archive.async
+> Only applies when hoodie.archive.automatic is turned on. When turned on runs archiver async with writing, which can speed up overall write performance.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_ARCHIVE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.keep.min.commits
+> Similar to hoodie.keep.max.commits, but controls the minimum number ofinstants to retain in the active timeline.<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: MIN_COMMITS_TO_KEEP`<br></br>
+
+---
+
+> #### hoodie.archive.merge.files.batch.size
+> The number of small archive files to be merged at once.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_FILES_BATCH_SIZE`<br></br>
+
+---
+
+### Index Configs
+
+Configurations that control indexing behavior, which tags incoming records as either inserts or updates to older records.
+
+`Config Class`: org.apache.hudi.config.HoodieIndexConfig<br></br>
+
+> #### hoodie.index.type
+> Type of index to use. Default is Bloom filter. Possible options are [BLOOM | GLOBAL_BLOOM |SIMPLE | GLOBAL_SIMPLE | INMEMORY | HBASE | BUCKET]. Bloom filters removes the dependency on a external system and is stored in the footer of the Parquet Data Files<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: INDEX_TYPE`<br></br>
+
+---
+
+> #### hoodie.index.bloom.fpp
+> Only applies if index type is BLOOM. Error rate allowed given the number of entries. This is used to calculate how many bits should be assigned for the bloom filter and the number of hash functions. This is usually set very low (default: 0.000000001), we like to tradeoff disk space for lower false positives. If the number of entries added to bloom filter exceeds the configured value (hoodie.index.bloom.num_entries), then this fpp may not be honored.<br></br>
+> **Default Value**: 0.000000001 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_FPP_VALUE`<br></br>
+
+---
+
+> #### hoodie.index.bloom.num_entries
+> Only applies if index type is BLOOM. This is the number of entries to be stored in the bloom filter. The rationale for the default: Assume the maxParquetFileSize is 128MB and averageRecordSize is 1kb and hence we approx a total of 130K records in a file. The default (60000) is roughly half of this approximation. Warning: Setting this very low, will generate a lot of false positives and index lookup will have to scan a lot more files than it has to and setting this to a very high number [...]
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_NUM_ENTRIES_VALUE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.update.partition.path
+> Only applies if index type is GLOBAL_BLOOM. When set to true, an update including the partition path of a record that already exists will result in inserting the incoming record into the new partition and deleting the original record in the old partition. When set to false, the original record will only be updated in the old partition<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_UPDATE_PARTITION_PATH_ENABLE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.use.caching
+> Only applies if index type is BLOOM. When true, the input RDD will cached to speed up index lookup by reducing IO for computing parallelism or affected partitions<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_USE_CACHING`<br></br>
+
+---
+
+> #### hoodie.bloom.index.parallelism
+> Only applies if index type is BLOOM. This is the amount of parallelism for index lookup, which involves a shuffle. By default, this is auto computed based on input workload characteristics.<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.bloom.index.prune.by.ranges
+> Only applies if index type is BLOOM. When true, range information from files to leveraged speed up index lookups. Particularly helpful, if the key has a monotonously increasing prefix, such as timestamp. If the record key is completely random, it is better to turn this off, since range pruning will only add extra overhead to the index lookup.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_PRUNE_BY_RANGES`<br></br>
+
+---
+
+> #### hoodie.bloom.index.filter.type
+> Filter type used. Default is BloomFilterTypeCode.DYNAMIC_V0. Available values are [BloomFilterTypeCode.SIMPLE , BloomFilterTypeCode.DYNAMIC_V0]. Dynamic bloom filters auto size themselves based on number of keys.<br></br>
+> **Default Value**: DYNAMIC_V0 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_TYPE`<br></br>
+
+---
+
+> #### hoodie.simple.index.parallelism
+> Only applies if index type is SIMPLE. This is the amount of parallelism for index lookup, which involves a Spark Shuffle<br></br>
+> **Default Value**: 50 (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.simple.index.use.caching
+> Only applies if index type is SIMPLE. When true, the incoming writes will cached to speed up index lookup by reducing IO for computing parallelism or affected partitions<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_USE_CACHING`<br></br>
+
+---
+
+> #### hoodie.global.simple.index.parallelism
+> Only applies if index type is GLOBAL_SIMPLE. This is the amount of parallelism for index lookup, which involves a Spark Shuffle<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: GLOBAL_SIMPLE_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.simple.index.update.partition.path
+> Similar to Key: 'hoodie.bloom.index.update.partition.path' , default: true but for simple index. Since version: 0.6.0<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_UPDATE_PARTITION_PATH_ENABLE`<br></br>
+
+---
+
+### Common Configurations {#Common-Configurations}
+
+The following set of configurations are common across Hudi.
+
+`Config Class`: org.apache.hudi.common.config.HoodieCommonConfig<br></br>
+
+> #### hoodie.common.spillable.diskmap.type
+> When handling input data that cannot be held in memory, to merge with a file on storage, a spillable diskmap is employed. By default, we use a persistent hashmap based loosely on bitcask, that offers O(1) inserts, lookups. Change this to `ROCKS_DB` to prefer using rocksDB, for handling the spill.<br></br>
+> **Default Value**: BITCASK (Optional)<br></br>
+> `Config Param: SPILLABLE_DISK_MAP_TYPE`<br></br>
+
+---
+
+## Metrics Configs {#METRICS}
+These set of configs are used to enable monitoring and reporting of key Hudi stats and metrics.
+
+### Metrics Configurations for Datadog reporter {#Metrics-Configurations-for-Datadog-reporter}
+
+Enables reporting on Hudi metrics using the Datadog reporter type. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsDatadogConfig<br></br>
+
+> #### hoodie.metrics.on
+> Turn on/off metrics reporting. off by default.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: TURN_METRICS_ON`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+> #### hoodie.metrics.reporter.type
+> Type of metrics reporter.<br></br>
+> **Default Value**: GRAPHITE (Optional)<br></br>
+> `Config Param: METRICS_REPORTER_TYPE_VALUE`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+> #### hoodie.metrics.reporter.class
+> <br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: METRICS_REPORTER_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+## Record Payload Config {#RECORD_PAYLOAD}
+This is the lowest level of customization offered by Hudi. Record payloads define how to produce new values to upsert based on incoming new record and stored old record. Hudi provides default implementations such as OverwriteWithLatestAvroPayload which simply update table with the latest/last-written record. This can be overridden to a custom class extending HoodieRecordPayload class, on both datasource and WriteClient levels.
+
+### Payload Configurations {#Payload-Configurations}
+
+Payload related configs, that can be leveraged to control merges based on specific business fields in the data.
+
+`Config Class`: org.apache.hudi.config.HoodiePayloadConfig<br></br>
+> #### hoodie.payload.event.time.field
+> Table column/field name to derive timestamp associated with the records. This can be useful for e.g, determining the freshness of the table.<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: EVENT_TIME_FIELD`<br></br>
+
+---
+
+> #### hoodie.payload.ordering.field
+> Table column/field name to order records that have the same key, before merging and writing to storage.<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: ORDERING_FIELD`<br></br>
+
+---
diff --git a/website/versioned_docs/version-0.12.1/bos_hoodie.md b/website/versioned_docs/version-0.12.1/bos_hoodie.md
new file mode 100644
index 0000000000..2a6cde81c8
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/bos_hoodie.md
@@ -0,0 +1,57 @@
+---
+title: Baidu Cloud
+keywords: [ hudi, hive, baidu, bos, spark, presto]
+summary: In this page, we go over how to configure Hudi with bos filesystem.
+last_modified_at: 2021-06-09T11:38:24-10:00
+---
+In this page, we explain how to get your Hudi job to store into Baidu BOS.
+
+## Baidu BOS configs
+
+There are two configurations required for Hudi-BOS compatibility:
+
+- Adding Baidu BOS Credentials for Hudi
+- Adding required Jars to classpath
+
+### Baidu BOS Credentials
+
+Add the required configs in your core-site.xml from where Hudi can fetch them. Replace the `fs.defaultFS` with your BOS bucket name, replace `fs.bos.endpoint` with your bos endpoint, replace `fs.bos.access.key` with your bos key, replace `fs.bos.secret.access.key` with your bos secret key. Hudi should be able to read/write from the bucket.
+
+```xml
+<property>
+ <name>fs.defaultFS</name>
+ <value>bos://bucketname/</value>
+</property>
+
+<property>
+ <name>fs.bos.endpoint</name>
+ <value>bos-endpoint-address</value>
+ <description>Baidu bos endpoint to connect to,for example : http://bj.bcebos.com</description>
+</property>
+
+<property>
+ <name>fs.bos.access.key</name>
+ <value>bos-key</value>
+ <description>Baidu access key</description>
+</property>
+
+<property>
+ <name>fs.bos.secret.access.key</name>
+ <value>bos-secret-key</value>
+ <description>Baidu secret key.</description>
+</property>
+
+<property>
+ <name>fs.bos.impl</name>
+ <value>org.apache.hadoop.fs.bos.BaiduBosFileSystem</value>
+</property>
+```
+
+### Baidu bos Libs
+
+Baidu hadoop libraries jars to add to our classpath
+
+- com.baidubce:bce-java-sdk:0.10.165
+- bos-hdfs-sdk-1.0.2-community.jar
+
+You can download the bos-hdfs-sdk jar from [here](https://sdk.bce.baidu.com/console-sdk/bos-hdfs-sdk-1.0.2-community.jar.zip) , and then unzip it.
\ No newline at end of file
diff --git a/website/versioned_docs/version-0.12.1/cli.md b/website/versioned_docs/version-0.12.1/cli.md
new file mode 100644
index 0000000000..9d1e98198b
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/cli.md
@@ -0,0 +1,553 @@
+---
+title: CLI
+keywords: [hudi, cli]
+last_modified_at: 2021-08-18T15:59:57-04:00
+---
+
+### Local set up
+Once hudi has been built, the shell can be fired by via `cd hudi-cli && ./hudi-cli.sh`. A hudi table resides on DFS, in a location referred to as the `basePath` and
+we would need this location in order to connect to a Hudi table. Hudi library effectively manages this table internally, using `.hoodie` subfolder to track all metadata.
+
+
+### Using Hudi-cli in S3
+If you are using hudi that comes packaged with AWS EMR, you can find instructions to use hudi-cli [here](https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-hudi-cli.html).
+If you are not using EMR, or would like to use latest hudi-cli from master, you can follow the below steps to access S3 dataset in your local environment (laptop).
+
+Build Hudi with corresponding Spark version, for eg, -Dspark3.1.x
+
+Set the following environment variables.
+```
+export AWS_REGION=us-east-2
+export AWS_ACCESS_KEY_ID=<key_id>
+export AWS_SECRET_ACCESS_KEY=<secret_key>
+export SPARK_HOME=<spark_home>
+```
+Ensure you set the SPARK_HOME to your local spark home compatible to compiled hudi spark version above.
+
+Apart from these, we might need to add aws jars to class path so that accessing S3 is feasible from local.
+We need two jars, namely, aws-java-sdk-bundle jar and hadoop-aws jar which you can find online.
+For eg:
+```
+wget https://repo1.maven.org/maven2/org/apache/hadoop/hadoop-aws/3.2.0/hadoop-aws-3.2.0.jar -o /lib/spark-3.2.0-bin-hadoop3.2/jars/hadoop-aws-3.2.0.jar
+wget https://repo1.maven.org/maven2/com/amazonaws/aws-java-sdk-bundle/1.11.375/aws-java-sdk-bundle-1.11.375.jar -o /lib/spark-3.2.0-bin-hadoop3.2/jars/aws-java-sdk-bundle-1.11.375.jar
+```
+
+#### Note: These AWS jar versions below are specific to Spark 3.2.0
+```
+export CLIENT_JAR=/lib/spark-3.2.0-bin-hadoop3.2/jars/aws-java-sdk-bundle-1.12.48.jar:/lib/spark-3.2.0-bin-hadoop3.2/jars/hadoop-aws-3.3.1.jar
+```
+Once these are set, you are good to launch hudi-cli and access S3 dataset.
+```
+./hudi-cli/hudi-cli.sh
+```
+
+## Using hudi-cli
+
+To initialize a hudi table, use the following command.
+
+```java
+===================================================================
+* ___ ___ *
+* /\__\ ___ /\ \ ___ *
+* / / / /\__\ / \ \ /\ \ *
+* / /__/ / / / / /\ \ \ \ \ \ *
+* / \ \ ___ / / / / / \ \__\ / \__\ *
+* / /\ \ /\__\ / /__/ ___ / /__/ \ |__| / /\/__/ *
+* \/ \ \/ / / \ \ \ /\__\ \ \ \ / / / /\/ / / *
+* \ / / \ \ / / / \ \ / / / \ /__/ *
+* / / / \ \/ / / \ \/ / / \ \__\ *
+* / / / \ / / \ / / \/__/ *
+* \/__/ \/__/ \/__/ Apache Hudi CLI *
+* *
+===================================================================
+
+hudi->create --path /user/hive/warehouse/table1 --tableName hoodie_table_1 --tableType COPY_ON_WRITE
+.....
+```
+
+To see the description of hudi table, use the command:
+
+```java
+hudi:hoodie_table_1->desc
+18/09/06 15:57:19 INFO timeline.HoodieActiveTimeline: Loaded instants []
+ _________________________________________________________
+ | Property | Value |
+ |========================================================|
+ | basePath | ... |
+ | metaPath | ... |
+ | fileSystem | hdfs |
+ | hoodie.table.name | hoodie_table_1 |
+ | hoodie.table.type | COPY_ON_WRITE |
+ | hoodie.archivelog.folder| |
+```
+
+Following is a sample command to connect to a Hudi table contains uber trips.
+
+```java
+hudi:trips->connect --path /app/uber/trips
+
+16/10/05 23:20:37 INFO model.HoodieTableMetadata: All commits :HoodieCommits{commitList=[20161002045850, 20161002052915, 20161002055918, 20161002065317, 20161002075932, 20161002082904, 20161002085949, 20161002092936, 20161002105903, 20161002112938, 20161002123005, 20161002133002, 20161002155940, 20161002165924, 20161002172907, 20161002175905, 20161002190016, 20161002192954, 20161002195925, 20161002205935, 20161002215928, 20161002222938, 20161002225915, 20161002232906, 20161003003028, 201 [...]
+Metadata for table trips loaded
+```
+
+Once connected to the table, a lot of other commands become available. The shell has contextual autocomplete help (press TAB) and below is a list of all commands, few of which are reviewed in this section
+
+```shell
+hudi:trips->help
+* ! - Allows execution of operating system (OS) commands
+* // - Inline comment markers (start of line only)
+* ; - Inline comment markers (start of line only)
+* bootstrap index showmapping - Show bootstrap index mapping
+* bootstrap index showpartitions - Show bootstrap indexed partitions
+* bootstrap run - Run a bootstrap action for current Hudi table
+* clean showpartitions - Show partition level details of a clean
+* cleans refresh - Refresh table metadata
+* cleans run - run clean
+* cleans show - Show the cleans
+* clear - Clears the console
+* cls - Clears the console
+* clustering run - Run Clustering
+* clustering schedule - Schedule Clustering
+* clustering scheduleAndExecute - Run Clustering. Make a cluster plan first and execute that plan immediately
+* commit rollback - Rollback a commit
+* commits compare - Compare commits with another Hoodie table
+* commit show_write_stats - Show write stats of a commit
+* commit showfiles - Show file level details of a commit
+* commit showpartitions - Show partition level details of a commit
+* commits refresh - Refresh table metadata
+* commits show - Show the commits
+* commits showarchived - Show the archived commits
+* commits sync - Sync commits with another Hoodie table
+* compaction repair - Renames the files to make them consistent with the timeline as dictated by Hoodie metadata. Use when compaction unschedule fails partially.
+* compaction run - Run Compaction for given instant time
+* compaction schedule - Schedule Compaction
+* compaction scheduleAndExecute - Schedule compaction plan and execute this plan
+* compaction show - Shows compaction details for a specific compaction instant
+* compaction showarchived - Shows compaction details for a specific compaction instant
+* compactions show all - Shows all compactions that are in active timeline
+* compactions showarchived - Shows compaction details for specified time window
+* compaction unschedule - Unschedule Compaction
+* compaction unscheduleFileId - UnSchedule Compaction for a fileId
+* compaction validate - Validate Compaction
+* connect - Connect to a hoodie table
+* create - Create a hoodie table if not present
+* date - Displays the local date and time
+* desc - Describe Hoodie Table properties
+* downgrade table - Downgrades a table
+* exit - Exits the shell
+* export instants - Export Instants and their metadata from the Timeline
+* fetch table schema - Fetches latest table schema
+* hdfsparquetimport - Imports Parquet table to a hoodie table
+* help - List all commands usage
+* marker delete - Delete the marker
+* metadata create - Create the Metadata Table if it does not exist
+* metadata delete - Remove the Metadata Table
+* metadata init - Update the metadata table from commits since the creation
+* metadata list-files - Print a list of all files in a partition from the metadata
+* metadata list-partitions - List all partitions from metadata
+* metadata refresh - Refresh table metadata
+* metadata set - Set options for Metadata Table
+* metadata stats - Print stats about the metadata
+* metadata validate-files - Validate all files in all partitions from the metadata
+* quit - Exits the shell
+* refresh - Refresh table metadata
+* repair addpartitionmeta - Add partition metadata to a table, if not present
+* repair corrupted clean files - repair corrupted clean files
+* repair deduplicate - De-duplicate a partition path contains duplicates & produce repaired files to replace with
+* repair migrate-partition-meta - Migrate all partition meta file currently stored in text format to be stored in base file format. See HoodieTableConfig#PARTITION_METAFILE_USE_DATA_FORMAT.
+* repair overwrite-hoodie-props - Overwrite hoodie.properties with provided file. Risky operation. Proceed with caution!
+* savepoint create - Savepoint a commit
+* savepoint delete - Delete the savepoint
+* savepoint rollback - Savepoint a commit
+* savepoints refresh - Refresh table metadata
+* savepoints show - Show the savepoints
+* script - Parses the specified resource file and executes its commands
+* set - Set spark launcher env to cli
+* show archived commits - Read commits from archived files and show details
+* show archived commit stats - Read commits from archived files and show details
+* show env - Show spark launcher env by key
+* show envs all - Show spark launcher envs
+* show fsview all - Show entire file-system view
+* show fsview latest - Show latest file-system view
+* show logfile metadata - Read commit metadata from log files
+* show logfile records - Read records from log files
+* show rollback - Show details of a rollback instant
+* show rollbacks - List all rollback instants
+* stats filesizes - File Sizes. Display summary stats on sizes of files
+* stats wa - Write Amplification. Ratio of how many records were upserted to how many records were actually written
+* sync validate - Validate the sync by counting the number of records
+* system properties - Shows the shell's properties
+* table delete-configs - Delete the supplied table configs from the table.
+* table recover-configs - Recover table configs, from update/delete that failed midway.
+* table update-configs - Update the table configs with configs with provided file.
+* temp_delete - Delete view name
+* temp_query - query against created temp view
+* temp delete - Delete view name
+* temp query - query against created temp view
+* temps_show - Show all views name
+* temps show - Show all views name
+* upgrade table - Upgrades a table
+* utils loadClass - Load a class
+* version - Displays shell version
+
+hudi:trips->
+```
+
+
+### Inspecting Commits
+
+The task of upserting or inserting a batch of incoming records is known as a **commit** in Hudi. A commit provides basic atomicity guarantees such that only committed data is available for querying.
+Each commit has a monotonically increasing string/number called the **commit number**. Typically, this is the time at which we started the commit.
+
+To view some basic information about the last 10 commits,
+
+
+```java
+hudi:trips->commits show --sortBy "Total Bytes Written" --desc true --limit 10
+ ________________________________________________________________________________________________________________________________________________________________________
+ | CommitTime | Total Bytes Written| Total Files Added| Total Files Updated| Total Partitions Written| Total Records Written| Total Update Records Written| Total Errors|
+ |=======================================================================================================================================================================|
+ ....
+ ....
+ ....
+```
+
+At the start of each write, Hudi also writes a .inflight commit to the .hoodie folder. You can use the timestamp there to estimate how long the commit has been inflight
+
+
+```java
+$ hdfs dfs -ls /app/uber/trips/.hoodie/*.inflight
+-rw-r--r-- 3 vinoth supergroup 321984 2016-10-05 23:18 /app/uber/trips/.hoodie/20161005225920.inflight
+```
+
+
+### Drilling Down to a specific Commit
+
+To understand how the writes spread across specific partiions,
+
+
+```java
+hudi:trips->commit showpartitions --commit 20161005165855 --sortBy "Total Bytes Written" --desc true --limit 10
+ __________________________________________________________________________________________________________________________________________
+ | Partition Path| Total Files Added| Total Files Updated| Total Records Inserted| Total Records Updated| Total Bytes Written| Total Errors|
+ |=========================================================================================================================================|
+ ....
+ ....
+```
+
+If you need file level granularity , we can do the following
+
+
+```java
+hudi:trips->commit showfiles --commit 20161005165855 --sortBy "Partition Path"
+ ________________________________________________________________________________________________________________________________________________________
+ | Partition Path| File ID | Previous Commit| Total Records Updated| Total Records Written| Total Bytes Written| Total Errors|
+ |=======================================================================================================================================================|
+ ....
+ ....
+```
+
+
+### FileSystem View
+
+Hudi views each partition as a collection of file-groups with each file-group containing a list of file-slices in commit order (See concepts).
+The below commands allow users to view the file-slices for a data-set.
+
+```java
+hudi:stock_ticks_mor->show fsview all
+ ....
+ _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
+ | Partition | FileId | Base-Instant | Data-File | Data-File Size| Num Delta Files| Total Delta File Size| Delta Files |
+ |==============================================================================================================================================================================================================================================================================================================================================================================================================|
+ | 2018/08/31| 111415c3-f26d-4639-86c8-f9956f245ac3| 20181002180759| hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/111415c3-f26d-4639-86c8-f9956f245ac3_0_20181002180759.parquet| 432.5 KB | 1 | 20.8 KB | [HoodieLogFile {hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/.111415c3-f26d-4639-86c8-f9956f245ac3_20181002180759.log.1}]|
+
+
+
+hudi:stock_ticks_mor->show fsview latest --partitionPath "2018/08/31"
+ ......
+ ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ [...]
+ | Partition | FileId | Base-Instant | Data-File | Data-File Size| Num Delta Files| Total Delta Size| Delta Size - compaction scheduled| Delta Size - compaction unscheduled| Delta To Base Ratio - compaction scheduled| Delta To Base Ratio - compaction unscheduled| Delta Files - compaction scheduled | Delta Files - compaction unscheduled|
+ |========================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================== [...]
+ | 2018/08/31| 111415c3-f26d-4639-86c8-f9956f245ac3| 20181002180759| hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/111415c3-f26d-4639-86c8-f9956f245ac3_0_20181002180759.parquet| 432.5 KB | 1 | 20.8 KB | 20.8 KB | 0.0 B | 0.0 B | 0.0 B | [HoodieLogFile {hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/.111415c3-f26d-4639-86c8-f9956f245ac3_20181002180759.log.1}]| [] |
+
+```
+
+
+### Statistics
+
+Since Hudi directly manages file sizes for DFS table, it might be good to get an overall picture
+
+
+```java
+hudi:trips->stats filesizes --partitionPath 2016/09/01 --sortBy "95th" --desc true --limit 10
+ ________________________________________________________________________________________________
+ | CommitTime | Min | 10th | 50th | avg | 95th | Max | NumFiles| StdDev |
+ |===============================================================================================|
+ | <COMMIT_ID> | 93.9 MB | 93.9 MB | 93.9 MB | 93.9 MB | 93.9 MB | 93.9 MB | 2 | 2.3 KB |
+ ....
+ ....
+```
+
+In case of Hudi write taking much longer, it might be good to see the write amplification for any sudden increases
+
+
+```java
+hudi:trips->stats wa
+ __________________________________________________________________________
+ | CommitTime | Total Upserted| Total Written| Write Amplifiation Factor|
+ |=========================================================================|
+ ....
+ ....
+```
+
+
+### Archived Commits
+
+In order to limit the amount of growth of .commit files on DFS, Hudi archives older .commit files (with due respect to the cleaner policy) into a commits.archived file.
+This is a sequence file that contains a mapping from commitNumber => json with raw information about the commit (same that is nicely rolled up above).
+
+
+### Compactions
+
+To get an idea of the lag between compaction and writer applications, use the below command to list down all
+pending compactions.
+
+```java
+hudi:trips->compactions show all
+ ___________________________________________________________________
+ | Compaction Instant Time| State | Total FileIds to be Compacted|
+ |==================================================================|
+ | <INSTANT_1> | REQUESTED| 35 |
+ | <INSTANT_2> | INFLIGHT | 27 |
+```
+
+To inspect a specific compaction plan, use
+
+```java
+hudi:trips->compaction show --instant <INSTANT_1>
+ _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
+ | Partition Path| File Id | Base Instant | Data File Path | Total Delta Files| getMetrics |
+ |================================================================================================================================================================================================================================================
+ | 2018/07/17 | <UUID> | <INSTANT_1> | viewfs://ns-default/.../../UUID_<INSTANT>.parquet | 1 | {TOTAL_LOG_FILES=1.0, TOTAL_IO_READ_MB=1230.0, TOTAL_LOG_FILES_SIZE=2.51255751E8, TOTAL_IO_WRITE_MB=991.0, TOTAL_IO_MB=2221.0}|
+
+```
+
+To manually schedule or run a compaction, use the below command. This command uses spark launcher to perform compaction
+operations.
+
+**NOTE:** Make sure no other application is scheduling compaction for this table concurrently
+{: .notice--info}
+
+```java
+hudi:trips->help compaction schedule
+Keyword: compaction schedule
+Description: Schedule Compaction
+ Keyword: sparkMemory
+ Help: Spark executor memory
+ Mandatory: false
+ Default if specified: '__NULL__'
+ Default if unspecified: '1G'
+
+* compaction schedule - Schedule Compaction
+```
+
+```java
+hudi:trips->help compaction run
+Keyword: compaction run
+Description: Run Compaction for given instant time
+ Keyword: tableName
+ Help: Table name
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+ Keyword: parallelism
+ Help: Parallelism for hoodie compaction
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+ Keyword: schemaFilePath
+ Help: Path for Avro schema file
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+ Keyword: sparkMemory
+ Help: Spark executor memory
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+ Keyword: retry
+ Help: Number of retries
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+ Keyword: compactionInstant
+ Help: Base path for the target hoodie table
+ Mandatory: true
+ Default if specified: '__NULL__'
+ Default if unspecified: '__NULL__'
+
+* compaction run - Run Compaction for given instant time
+```
+
+### Validate Compaction
+
+Validating a compaction plan : Check if all the files necessary for compactions are present and are valid
+
+```java
+hudi:stock_ticks_mor->compaction validate --instant 20181005222611
+...
+
+ COMPACTION PLAN VALID
+
+ ___________________________________________________________________________________________________________________________________________________________________________________________________________________________
+ | File Id | Base Instant Time| Base Data File | Num Delta Files| Valid| Error|
+ |==========================================================================================================================================================================================================================|
+ | 05320e98-9a57-4c38-b809-a6beaaeb36bd| 20181005222445 | hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/05320e98-9a57-4c38-b809-a6beaaeb36bd_0_20181005222445.parquet| 1 | true | |
+
+
+
+hudi:stock_ticks_mor->compaction validate --instant 20181005222601
+
+ COMPACTION PLAN INVALID
+
+ _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
+ | File Id | Base Instant Time| Base Data File | Num Delta Files| Valid| Error |
+ |=====================================================================================================================================================================================================================================================================================================|
+ | 05320e98-9a57-4c38-b809-a6beaaeb36bd| 20181005222445 | hdfs://namenode:8020/user/hive/warehouse/stock_ticks_mor/2018/08/31/05320e98-9a57-4c38-b809-a6beaaeb36bd_0_20181005222445.parquet| 1 | false| All log files specified in compaction operation is not present. Missing .... |
+```
+
+**NOTE:** The following commands must be executed without any other writer/ingestion application running.
+{: .notice--warning}
+
+Sometimes, it becomes necessary to remove a fileId from a compaction-plan inorder to speed-up or unblock compaction
+operation. Any new log-files that happened on this file after the compaction got scheduled will be safely renamed
+so that are preserved. Hudi provides the following CLI to support it
+
+
+### Unscheduling Compaction
+
+```java
+hudi:trips->compaction unscheduleFileId --fileId <FileUUID>
+....
+No File renames needed to unschedule file from pending compaction. Operation successful.
+```
+
+In other cases, an entire compaction plan needs to be reverted. This is supported by the following CLI
+
+```java
+hudi:trips->compaction unschedule --compactionInstant <compactionInstant>
+.....
+No File renames needed to unschedule pending compaction. Operation successful.
+```
+
+### Repair Compaction
+
+The above compaction unscheduling operations could sometimes fail partially (e:g -> DFS temporarily unavailable). With
+partial failures, the compaction operation could become inconsistent with the state of file-slices. When you run
+`compaction validate`, you can notice invalid compaction operations if there is one. In these cases, the repair
+command comes to the rescue, it will rearrange the file-slices so that there is no loss and the file-slices are
+consistent with the compaction plan
+
+```java
+hudi:stock_ticks_mor->compaction repair --instant 20181005222611
+......
+Compaction successfully repaired
+.....
+```
+
+### Savepoint and Restore
+As the name suggest, "savepoint" saves the table as of the commit time, so that it lets you restore the table to this
+savepoint at a later point in time if need be. You can read more about savepoints and restore [here](/docs/next/disaster_recovery)
+
+To trigger savepoint for a hudi table
+```java
+connect --path /tmp/hudi_trips_cow/
+commits show
+set --conf SPARK_HOME=<SPARK_HOME>
+savepoint create --commit 20220128160245447 --sparkMaster local[2]
+```
+
+To restore the table to one of the savepointed commit:
+
+```java
+connect --path /tmp/hudi_trips_cow/
+commits show
+set --conf SPARK_HOME=<SPARK_HOME>
+savepoints show
+╔═══════════════════╗
+║ SavepointTime ║
+╠═══════════════════╣
+║ 20220128160245447 ║
+╚═══════════════════╝
+savepoint rollback --savepoint 20220128160245447 --sparkMaster local[2]
+```
+
+### Upgrade and Downgrade Table
+In case the user needs to downgrade the version of Hudi library used, the Hudi table needs to be manually downgraded
+on the newer version of Hudi CLI before library downgrade. To downgrade a Hudi table through CLI, user needs to specify
+the target Hudi table version as follows:
+
+```shell
+connect --path <table_path>
+downgrade table --toVersion <target_version>
+```
+
+The following table shows the Hudi table versions corresponding to the Hudi release versions:
+
+| Hudi Table Version | Hudi Release Version(s) |
+|:-------------------|:------------------------|
+| `FIVE` or `5` | 0.12.0 and above |
+| `FOUR` or `4` | 0.11.x |
+| `THREE` or `3` | 0.10.x |
+| `TWO` or `2` | 0.9.x |
+| `ONE` or `1` | 0.6.x - 0.8.x |
+| `ZERO` or `0` | 0.5.x and below |
+
+For example, to downgrade a table from version `FIVE`(`5`) (current version) to `TWO`(`2`), you should run (use proper Spark master based
+on your environment)
+
+```shell
+downgrade table --toVersion TWO --sparkMaster local[2]
+```
+
+or
+
+```shell
+downgrade table --toVersion 2 --sparkMaster local[2]
+```
+
+You can verify the table version by looking at the `hoodie.table.version` property in `.hoodie/hoodie.properties` under
+the table path:
+
+```properties
+hoodie.table.version=2
+```
+
+Hudi CLI also provides the ability to manually upgrade a Hudi table. To upgrade a Hudi table through CLI:
+
+```shell
+upgrade table --toVersion <target_version>
+```
+
+:::note
+Table upgrade is automatically handled by the Hudi write client in different deployment modes such as DeltaStreamer
+after upgrading the Hudi library so that the user does not have to do manual upgrade. Such automatic table upgrade
+is the **recommended** way in general, instead of using `upgrade` CLI command.
+
+Table upgrade from table version ONE to TWO requires key generator related configs such as
+"hoodie.datasource.write.recordkey.field", which is only available when user configures the write job. So the table
+upgrade from version ONE to TWO through CLI is not supported, and user should rely on the automatic upgrade in the write
+client instead.
+:::
+
+You may also run the upgrade command without specifying the target version. In such a case, the latest table version
+corresponding to the library release version is used:
+
+```shell
+upgrade table
+```
\ No newline at end of file
diff --git a/website/versioned_docs/version-0.12.1/cloud.md b/website/versioned_docs/version-0.12.1/cloud.md
new file mode 100644
index 0000000000..eed2d97846
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/cloud.md
@@ -0,0 +1,31 @@
+---
+title: Cloud Storage
+keywords: [hudi, aws, gcp, oss, azure, cloud, juicefs]
+summary: "In this page, we introduce how Hudi work with different Cloud providers."
+toc: true
+last_modified_at: 2021-10-12T10:50:00+08:00
+---
+
+## Talking to Cloud Storage
+
+Immaterial of whether RDD/WriteClient APIs or Datasource is used, the following information helps configure access
+to cloud stores.
+
+* [AWS S3](/docs/s3_hoodie) <br/>
+ Configurations required for S3 and Hudi co-operability.
+* [Google Cloud Storage](/docs/gcs_hoodie) <br/>
+ Configurations required for GCS and Hudi co-operability.
+* [Alibaba Cloud OSS](/docs/oss_hoodie) <br/>
+ Configurations required for OSS and Hudi co-operability.
+* [Microsoft Azure](/docs/azure_hoodie) <br/>
+ Configurations required for Azure and Hudi co-operability.
+* [Tencent Cloud Object Storage](/docs/cos_hoodie) <br/>
+ Configurations required for COS and Hudi co-operability.
+* [IBM Cloud Object Storage](/docs/ibm_cos_hoodie) <br/>
+ Configurations required for IBM Cloud Object Storage and Hudi co-operability.
+* [Baidu Cloud Object Storage](bos_hoodie) <br/>
+ Configurations required for BOS and Hudi co-operability.
+* [JuiceFS](jfs_hoodie) <br/>
+ Configurations required for JuiceFS and Hudi co-operability.
+* [Oracle Cloud Infrastructure](oci_hoodie) <br/>
+ Configurations required for OCI and Hudi co-operability.
diff --git a/website/versioned_docs/version-0.12.1/clustering.md b/website/versioned_docs/version-0.12.1/clustering.md
new file mode 100644
index 0000000000..9e157de785
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/clustering.md
@@ -0,0 +1,267 @@
+---
+title: Clustering
+summary: "In this page, we describe async compaction in Hudi."
+toc: true
+last_modified_at:
+---
+
+## Background
+
+Apache Hudi brings stream processing to big data, providing fresh data while being an order of magnitude efficient over traditional batch processing. In a data lake/warehouse, one of the key trade-offs is between ingestion speed and query performance. Data ingestion typically prefers small files to improve parallelism and make data available to queries as soon as possible. However, query performance degrades poorly with a lot of small files. Also, during ingestion, data is typically co-l [...]
+<!--truncate-->
+
+## Clustering Architecture
+
+At a high level, Hudi provides different operations such as insert/upsert/bulk_insert through it’s write client API to be able to write data to a Hudi table. To be able to choose a trade-off between file size and ingestion speed, Hudi provides a knob `hoodie.parquet.small.file.limit` to be able to configure the smallest allowable file size. Users are able to configure the small file [soft limit](https://hudi.apache.org/docs/configurations/#hoodieparquetsmallfilelimit) to `0` to force new [...]
+
+
+
+To be able to support an architecture that allows for fast ingestion without compromising query performance, we have introduced a ‘clustering’ service to rewrite the data to optimize Hudi data lake file layout.
+
+Clustering table service can run asynchronously or synchronously adding a new action type called “REPLACE”, that will mark the clustering action in the Hudi metadata timeline.
+
+
+
+### Overall, there are 2 parts to clustering
+
+1. Scheduling clustering: Create a clustering plan using a pluggable clustering strategy.
+2. Execute clustering: Process the plan using an execution strategy to create new files and replace old files.
+
+
+### Scheduling clustering
+
+Following steps are followed to schedule clustering.
+
+1. Identify files that are eligible for clustering: Depending on the clustering strategy chosen, the scheduling logic will identify the files eligible for clustering.
+2. Group files that are eligible for clustering based on specific criteria. Each group is expected to have data size in multiples of ‘targetFileSize’. Grouping is done as part of ‘strategy’ defined in the plan. Additionally, there is an option to put a cap on group size to improve parallelism and avoid shuffling large amounts of data.
+3. Finally, the clustering plan is saved to the timeline in an avro [metadata format](https://github.com/apache/hudi/blob/master/hudi-common/src/main/avro/HoodieClusteringPlan.avsc).
+
+
+### Running clustering
+
+1. Read the clustering plan and get the ‘clusteringGroups’ that mark the file groups that need to be clustered.
+2. For each group, we instantiate appropriate strategy class with strategyParams (example: sortColumns) and apply that strategy to rewrite the data.
+3. Create a “REPLACE” commit and update the metadata in [HoodieReplaceCommitMetadata](https://github.com/apache/hudi/blob/master/hudi-common/src/main/java/org/apache/hudi/common/model/HoodieReplaceCommitMetadata.java).
+
+
+Clustering Service builds on Hudi’s MVCC based design to allow for writers to continue to insert new data while clustering action runs in the background to reformat data layout, ensuring snapshot isolation between concurrent readers and writers.
+
+NOTE: Clustering can only be scheduled for tables / partitions not receiving any concurrent updates. In the future, concurrent updates use-case will be supported as well.
+
+
+_Figure: Illustrating query performance improvements by clustering_
+
+### Setting up clustering
+Inline clustering can be setup easily using spark dataframe options. See sample below
+
+```scala
+import org.apache.hudi.QuickstartUtils._
+import scala.collection.JavaConversions._
+import org.apache.spark.sql.SaveMode._
+import org.apache.hudi.DataSourceReadOptions._
+import org.apache.hudi.DataSourceWriteOptions._
+import org.apache.hudi.config.HoodieWriteConfig._
+
+
+val df = //generate data frame
+df.write.format("org.apache.hudi").
+ options(getQuickstartWriteConfigs).
+ option(PRECOMBINE_FIELD_OPT_KEY, "ts").
+ option(RECORDKEY_FIELD_OPT_KEY, "uuid").
+ option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
+ option(TABLE_NAME, "tableName").
+ option("hoodie.parquet.small.file.limit", "0").
+ option("hoodie.clustering.inline", "true").
+ option("hoodie.clustering.inline.max.commits", "4").
+ option("hoodie.clustering.plan.strategy.target.file.max.bytes", "1073741824").
+ option("hoodie.clustering.plan.strategy.small.file.limit", "629145600").
+ option("hoodie.clustering.plan.strategy.sort.columns", "column1,column2"). //optional, if sorting is needed as part of rewriting data
+ mode(Append).
+ save("dfs://location");
+```
+
+## Async Clustering - Strategies
+For more advanced usecases, async clustering pipeline can also be setup. See an example [here](https://cwiki.apache.org/confluence/display/HUDI/RFC+-+19+Clustering+data+for+freshness+and+query+performance#RFC19Clusteringdataforfreshnessandqueryperformance-SetupforAsyncclusteringJob).
+
+On a high level, clustering creates a plan based on a configurable strategy, groups eligible files based on specific
+criteria and then executes the plan. Hudi supports [multi-writers](https://hudi.apache.org/docs/concurrency_control#enabling-multi-writing) which provides
+snapshot isolation between multiple table services, thus allowing writers to continue with ingestion while clustering
+runs in the background.
+
+As mentioned before, clustering plan as well as execution depends on configurable strategy. These strategies can be
+broadly classified into three types: clustering plan strategy, execution strategy and update strategy.
+
+### Plan Strategy
+
+This strategy comes into play while creating clustering plan. It helps to decide what file groups should be clustered.
+Let's look at different plan strategies that are available with Hudi. Note that these strategies are easily pluggable
+using this [config](/docs/configurations#hoodieclusteringplanstrategyclass).
+
+1. `SparkSizeBasedClusteringPlanStrategy`: It selects file slices based on
+ the [small file limit](/docs/configurations/#hoodieclusteringplanstrategysmallfilelimit)
+ of base files and creates clustering groups upto max file size allowed per group. The max size can be specified using
+ this [config](/docs/configurations/#hoodieclusteringplanstrategymaxbytespergroup). This
+ strategy is useful for stitching together medium-sized files into larger ones to reduce lot of files spread across
+ cold partitions.
+2. `SparkRecentDaysClusteringPlanStrategy`: It looks back previous 'N' days partitions and creates a plan that will
+ cluster the 'small' file slices within those partitions. This is the default strategy. It could be useful when the
+ workload is predictable and data is partitioned by time.
+3. `SparkSelectedPartitionsClusteringPlanStrategy`: In case you want to cluster only specific partitions within a range,
+ no matter how old or new are those partitions, then this strategy could be useful. To use this strategy, one needs
+ to set below two configs additionally (both begin and end partitions are inclusive):
+
+```
+hoodie.clustering.plan.strategy.cluster.begin.partition
+hoodie.clustering.plan.strategy.cluster.end.partition
+```
+
+:::note
+All the strategies are partition-aware and the latter two are still bound by the size limits of the first strategy.
+:::
+
+### Execution Strategy
+
+After building the clustering groups in the planning phase, Hudi applies execution strategy, for each group, primarily
+based on sort columns and size. The strategy can be specified using this [config](/docs/configurations/#hoodieclusteringexecutionstrategyclass).
+
+`SparkSortAndSizeExecutionStrategy` is the default strategy. Users can specify the columns to sort the data by, when
+clustering using
+this [config](/docs/configurations/#hoodieclusteringplanstrategysortcolumns). Apart from
+that, we can also set [max file size](/docs/configurations/#hoodieparquetmaxfilesize)
+for the parquet files produced due to clustering. The strategy uses bulk insert to write data into new files, in which
+case, Hudi implicitly uses a partitioner that does sorting based on specified columns. In this way, the strategy changes
+the data layout in a way that not only improves query performance but also balance rewrite overhead automatically.
+
+Now this strategy can be executed either as a single spark job or multiple jobs depending on number of clustering groups
+created in the planning phase. By default, Hudi will submit multiple spark jobs and union the results. In case you want
+to force Hudi to use single spark job, set the execution strategy
+class [config](/docs/configurations/#hoodieclusteringexecutionstrategyclass)
+to `SingleSparkJobExecutionStrategy`.
+
+### Update Strategy
+
+Currently, clustering can only be scheduled for tables/partitions not receiving any concurrent updates. By default,
+the [config for update strategy](/docs/configurations/#hoodieclusteringupdatesstrategy) is
+set to ***SparkRejectUpdateStrategy***. If some file group has updates during clustering then it will reject updates and
+throw an exception. However, in some use-cases updates are very sparse and do not touch most file groups. The default
+strategy to simply reject updates does not seem fair. In such use-cases, users can set the config to ***SparkAllowUpdateStrategy***.
+
+We discussed the critical strategy configurations. All other configurations related to clustering are
+listed [here](/docs/configurations/#Clustering-Configs). Out of this list, a few
+configurations that will be very useful are:
+
+| Config key | Remarks | Default |
+| ----------- | ------- | ------- |
+| `hoodie.clustering.async.enabled` | Enable running of clustering service, asynchronously as writes happen on the table. | False |
+| `hoodie.clustering.async.max.commits` | Control frequency of async clustering by specifying after how many commits clustering should be triggered. | 4 |
+| `hoodie.clustering.preserve.commit.metadata` | When rewriting data, preserves existing _hoodie_commit_time. This means users can run incremental queries on clustered data without any side-effects. | False |
+
+## Asynchronous Clustering
+Users can leverage [HoodieClusteringJob](https://cwiki.apache.org/confluence/display/HUDI/RFC+-+19+Clustering+data+for+freshness+and+query+performance#RFC19Clusteringdataforfreshnessandqueryperformance-SetupforAsyncclusteringJob)
+to setup 2-step asynchronous clustering.
+
+### HoodieClusteringJob
+By specifying the `scheduleAndExecute` mode both schedule as well as clustering can be achieved in the same step.
+The appropriate mode can be specified using `-mode` or `-m` option. There are three modes:
+
+1. `schedule`: Make a clustering plan. This gives an instant which can be passed in execute mode.
+2. `execute`: Execute a clustering plan at a particular instant. If no instant-time is specified, HoodieClusteringJob will execute for the earliest instant on the Hudi timeline.
+3. `scheduleAndExecute`: Make a clustering plan first and execute that plan immediately.
+
+Note that to run this job while the original writer is still running, please enable multi-writing:
+```
+hoodie.write.concurrency.mode=optimistic_concurrency_control
+hoodie.write.lock.provider=org.apache.hudi.client.transaction.lock.ZookeeperBasedLockProvider
+```
+
+A sample spark-submit command to setup HoodieClusteringJob is as below:
+
+```bash
+spark-submit \
+--class org.apache.hudi.utilities.HoodieClusteringJob \
+/path/to/hudi-utilities-bundle/target/hudi-utilities-bundle_2.12-0.9.0-SNAPSHOT.jar \
+--props /path/to/config/clusteringjob.properties \
+--mode scheduleAndExecute \
+--base-path /path/to/hudi_table/basePath \
+--table-name hudi_table_schedule_clustering \
+--spark-memory 1g
+```
+A sample `clusteringjob.properties` file:
+```
+hoodie.clustering.async.enabled=true
+hoodie.clustering.async.max.commits=4
+hoodie.clustering.plan.strategy.target.file.max.bytes=1073741824
+hoodie.clustering.plan.strategy.small.file.limit=629145600
+hoodie.clustering.execution.strategy.class=org.apache.hudi.client.clustering.run.strategy.SparkSortAndSizeExecutionStrategy
+hoodie.clustering.plan.strategy.sort.columns=column1,column2
+```
+
+### HoodieDeltaStreamer
+
+This brings us to our users' favorite utility in Hudi. Now, we can trigger asynchronous clustering with DeltaStreamer.
+Just set the `hoodie.clustering.async.enabled` config to true and specify other clustering config in properties file
+whose location can be pased as `—props` when starting the deltastreamer (just like in the case of HoodieClusteringJob).
+
+A sample spark-submit command to setup HoodieDeltaStreamer is as below:
+
+```bash
+spark-submit \
+--class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer \
+/path/to/hudi-utilities-bundle/target/hudi-utilities-bundle_2.12-0.9.0-SNAPSHOT.jar \
+--props /path/to/config/clustering_kafka.properties \
+--schemaprovider-class org.apache.hudi.utilities.schema.SchemaRegistryProvider \
+--source-class org.apache.hudi.utilities.sources.AvroKafkaSource \
+--source-ordering-field impresssiontime \
+--table-type COPY_ON_WRITE \
+--target-base-path /path/to/hudi_table/basePath \
+--target-table impressions_cow_cluster \
+--op INSERT \
+--hoodie-conf hoodie.clustering.async.enabled=true \
+--continuous
+```
+
+### Spark Structured Streaming
+
+We can also enable asynchronous clustering with Spark structured streaming sink as shown below.
+```scala
+val commonOpts = Map(
+ "hoodie.insert.shuffle.parallelism" -> "4",
+ "hoodie.upsert.shuffle.parallelism" -> "4",
+ DataSourceWriteOptions.RECORDKEY_FIELD.key -> "_row_key",
+ DataSourceWriteOptions.PARTITIONPATH_FIELD.key -> "partition",
+ DataSourceWriteOptions.PRECOMBINE_FIELD.key -> "timestamp",
+ HoodieWriteConfig.TBL_NAME.key -> "hoodie_test"
+)
+
+def getAsyncClusteringOpts(isAsyncClustering: String,
+ clusteringNumCommit: String,
+ executionStrategy: String):Map[String, String] = {
+ commonOpts + (DataSourceWriteOptions.ASYNC_CLUSTERING_ENABLE.key -> isAsyncClustering,
+ HoodieClusteringConfig.ASYNC_CLUSTERING_MAX_COMMITS.key -> clusteringNumCommit,
+ HoodieClusteringConfig.EXECUTION_STRATEGY_CLASS_NAME.key -> executionStrategy
+ )
+}
+
+def initStreamingWriteFuture(hudiOptions: Map[String, String]): Future[Unit] = {
+ val streamingInput = // define the source of streaming
+ Future {
+ println("streaming starting")
+ streamingInput
+ .writeStream
+ .format("org.apache.hudi")
+ .options(hudiOptions)
+ .option("checkpointLocation", basePath + "/checkpoint")
+ .mode(Append)
+ .start()
+ .awaitTermination(10000)
+ println("streaming ends")
+ }
+}
+
+def structuredStreamingWithClustering(): Unit = {
+ val df = //generate data frame
+ val hudiOptions = getClusteringOpts("true", "1", "org.apache.hudi.client.clustering.run.strategy.SparkSortAndSizeExecutionStrategy")
+ val f1 = initStreamingWriteFuture(hudiOptions)
+ Await.result(f1, Duration.Inf)
+}
+```
diff --git a/website/versioned_docs/version-0.12.1/compaction.md b/website/versioned_docs/version-0.12.1/compaction.md
new file mode 100644
index 0000000000..9d73e31bd5
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/compaction.md
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+---
+title: Compaction
+summary: "In this page, we describe async compaction in Hudi."
+toc: true
+last_modified_at:
+---
+
+## Async Compaction
+Compaction is executed asynchronously with Hudi by default. Async Compaction is performed in 2 steps:
+
+1. ***Compaction Scheduling***: This is done by the ingestion job. In this step, Hudi scans the partitions and selects **file
+ slices** to be compacted. A compaction plan is finally written to Hudi timeline.
+1. ***Compaction Execution***: In this step the compaction plan is read and file slices are compacted.
+
+There are few ways by which we can execute compactions asynchronously.
+
+### Spark Structured Streaming
+
+Compactions are scheduled and executed asynchronously inside the
+streaming job. Async Compactions are enabled by default for structured streaming jobs
+on Merge-On-Read table.
+
+Here is an example snippet in java
+
+```properties
+import org.apache.hudi.DataSourceWriteOptions;
+import org.apache.hudi.HoodieDataSourceHelpers;
+import org.apache.hudi.config.HoodieCompactionConfig;
+import org.apache.hudi.config.HoodieWriteConfig;
+
+import org.apache.spark.sql.streaming.OutputMode;
+import org.apache.spark.sql.streaming.ProcessingTime;
+
+
+ DataStreamWriter<Row> writer = streamingInput.writeStream().format("org.apache.hudi")
+ .option(DataSourceWriteOptions.OPERATION_OPT_KEY(), operationType)
+ .option(DataSourceWriteOptions.TABLE_TYPE_OPT_KEY(), tableType)
+ .option(DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY(), "_row_key")
+ .option(DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY(), "partition")
+ .option(DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY(), "timestamp")
+ .option(HoodieCompactionConfig.INLINE_COMPACT_NUM_DELTA_COMMITS_PROP, "10")
+ .option(DataSourceWriteOptions.ASYNC_COMPACT_ENABLE_OPT_KEY(), "true")
+ .option(HoodieWriteConfig.TABLE_NAME, tableName).option("checkpointLocation", checkpointLocation)
+ .outputMode(OutputMode.Append());
+ writer.trigger(new ProcessingTime(30000)).start(tablePath);
+```
+
+### DeltaStreamer Continuous Mode
+Hudi DeltaStreamer provides continuous ingestion mode where a single long running spark application
+ingests data to Hudi table continuously from upstream sources. In this mode, Hudi supports managing asynchronous
+compactions. Here is an example snippet for running in continuous mode with async compactions
+
+```properties
+spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.6.0 \
+--class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer \
+--table-type MERGE_ON_READ \
+--target-base-path <hudi_base_path> \
+--target-table <hudi_table> \
+--source-class org.apache.hudi.utilities.sources.JsonDFSSource \
+--source-ordering-field ts \
+--schemaprovider-class org.apache.hudi.utilities.schema.FilebasedSchemaProvider \
+--props /path/to/source.properties \
+--continous
+```
+
+## Synchronous Compaction
+By default, compaction is run asynchronously.
+
+If latency of ingesting records is important for you, you are most likely using Merge-On-Read tables.
+Merge-On-Read tables store data using a combination of columnar (e.g parquet) + row based (e.g avro) file formats.
+Updates are logged to delta files & later compacted to produce new versions of columnar files.
+To improve ingestion latency, Async Compaction is the default configuration.
+
+If immediate read performance of a new commit is important for you, or you want simplicity of not managing separate compaction jobs,
+you may want Synchronous compaction, which means that as a commit is written it is also compacted by the same job.
+
+Compaction is run synchronously by passing the flag "--disable-compaction" (Meaning to disable async compaction scheduling).
+When both ingestion and compaction is running in the same spark context, you can use resource allocation configuration
+in DeltaStreamer CLI such as ("--delta-sync-scheduling-weight",
+"--compact-scheduling-weight", ""--delta-sync-scheduling-minshare", and "--compact-scheduling-minshare")
+to control executor allocation between ingestion and compaction.
+
+
+## Offline Compaction
+
+The compaction of the MERGE_ON_READ table is enabled by default. The trigger strategy is to perform compaction after completing
+five commits. Because compaction consumes a lot of memory and is placed in the same pipeline with the write operation, it's easy to
+interfere with the write operation when there is a large amount of data (> 100000 per second). As this time, it is more stable to execute
+the compaction task by using offline compaction.
+
+:::note
+The execution of a compaction task includes two parts: schedule compaction plan and execute compaction plan. It's recommended that
+the process of schedule compaction plan be triggered periodically by the write task, and the write parameter `compaction.schedule.enable`
+is enabled by default.
+:::
+
+### Hudi Compactor Utility
+Hudi provides a standalone tool to execute specific compactions asynchronously. Below is an example and you can read more in the [deployment guide](/docs/deployment#compactions)
+
+Example:
+```properties
+spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.6.0 \
+--class org.apache.hudi.utilities.HoodieCompactor \
+--base-path <base_path> \
+--table-name <table_name> \
+--schema-file <schema_file> \
+--instant-time <compaction_instant>
+```
+
+Note, the `instant-time` parameter is now optional for the Hudi Compactor Utility. If using the utility without `--instant time`,
+the spark-submit will execute the earliest scheduled compaction on the Hudi timeline.
+
+### Hudi CLI
+Hudi CLI is yet another way to execute specific compactions asynchronously. Here is an example and you can read more in the [deployment guide](/docs/cli#compactions)
+
+Example:
+```properties
+hudi:trips->compaction run --tableName <table_name> --parallelism <parallelism> --compactionInstant <InstantTime>
+...
+```
+
+### Flink Offline Compaction
+Offline compaction needs to submit the Flink task on the command line. The program entry is as follows: `hudi-flink-bundle_2.11-0.9.0-SNAPSHOT.jar` :
+`org.apache.hudi.sink.compact.HoodieFlinkCompactor`
+
+```bash
+# Command line
+./bin/flink run -c org.apache.hudi.sink.compact.HoodieFlinkCompactor lib/hudi-flink-bundle_2.11-0.9.0.jar --path hdfs://xxx:9000/table
+```
+
+#### Options
+
+| Option Name | Required | Default | Remarks |
+| ----------- | ------- | ------- | ------- |
+| `--path` | `frue` | `--` | The path where the target table is stored on Hudi |
+| `--compaction-max-memory` | `false` | `100` | The index map size of log data during compaction, 100 MB by default. If you have enough memory, you can turn up this parameter |
+| `--schedule` | `false` | `false` | whether to execute the operation of scheduling compaction plan. When the write process is still writing， turning on this parameter have a risk of losing data. Therefore, it must be ensured that there are no write tasks currently writing data to this table when this parameter is turned on |
+| `--seq` | `false` | `LIFO` | The order in which compaction tasks are executed. Executing from the latest compaction plan by default. `LIFO`: executing from the latest plan. `FIFO`: executing from the oldest plan. |
+| `--service` | `false` | `false` | Whether to start a monitoring service that checks and schedules new compaction task in configured interval. |
+| `--min-compaction-interval-seconds` | `false` | `600(s)` | The checking interval for service mode, by default 10 minutes. |
\ No newline at end of file
diff --git a/website/versioned_docs/version-0.12.1/comparison.md b/website/versioned_docs/version-0.12.1/comparison.md
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+---
+title: "Comparison"
+keywords: [ apache, hudi, kafka, kudu, hive, hbase, stream processing]
+last_modified_at: 2019-12-30T15:59:57-04:00
+---
+
+Apache Hudi fills a big void for processing data on top of DFS, and thus mostly co-exists nicely with these technologies. However,
+it would be useful to understand how Hudi fits into the current big data ecosystem, contrasting it with a few related systems
+and bring out the different tradeoffs these systems have accepted in their design.
+
+## Kudu
+
+[Apache Kudu](https://kudu.apache.org) is a storage system that has similar goals as Hudi, which is to bring real-time analytics on petabytes of data via first
+class support for `upserts`. A key differentiator is that Kudu also attempts to serve as a datastore for OLTP workloads, something that Hudi does not aspire to be.
+Consequently, Kudu does not support incremental pulling (as of early 2017), something Hudi does to enable incremental processing use cases.
+
+
+Kudu diverges from a distributed file system abstraction and HDFS altogether, with its own set of storage servers talking to each other via RAFT.
+Hudi, on the other hand, is designed to work with an underlying Hadoop compatible filesystem (HDFS,S3 or Ceph) and does not have its own fleet of storage servers,
+instead relying on Apache Spark to do the heavy-lifting. Thus, Hudi can be scaled easily, just like other Spark jobs, while Kudu would require hardware
+& operational support, typical to datastores like HBase or Vertica. We have not at this point, done any head to head benchmarks against Kudu (given RTTable is WIP).
+But, if we were to go with results shared by [CERN](https://db-blog.web.cern.ch/blog/zbigniew-baranowski/2017-01-performance-comparison-different-file-formats-and-storage-engines) ,
+we expect Hudi to positioned at something that ingests parquet with superior performance.
+
+
+## Hive Transactions
+
+[Hive Transactions/ACID](https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions) is another similar effort, which tries to implement storage like
+`merge-on-read`, on top of ORC file format. Understandably, this feature is heavily tied to Hive and other efforts like [LLAP](https://cwiki.apache.org/confluence/display/Hive/LLAP).
+Hive transactions does not offer the read-optimized storage option or the incremental pulling, that Hudi does. In terms of implementation choices, Hudi leverages
+the full power of a processing framework like Spark, while Hive transactions feature is implemented underneath by Hive tasks/queries kicked off by user or the Hive metastore.
+Based on our production experience, embedding Hudi as a library into existing Spark pipelines was much easier and less operationally heavy, compared with the other approach.
+Hudi is also designed to work with non-hive engines like PrestoDB/Spark and will incorporate file formats other than parquet over time.
+
+## HBase
+
+Even though [HBase](https://hbase.apache.org) is ultimately a key-value store for OLTP workloads, users often tend to associate HBase with analytics given the proximity to Hadoop.
+Given HBase is heavily write-optimized, it supports sub-second upserts out-of-box and Hive-on-HBase lets users query that data. However, in terms of actual performance for analytical workloads,
+hybrid columnar storage formats like Parquet/ORC handily beat HBase, since these workloads are predominantly read-heavy. Hudi bridges this gap between faster data and having
+analytical storage formats. From an operational perspective, arming users with a library that provides faster data, is more scalable, than managing a big farm of HBase region servers,
+just for analytics. Finally, HBase does not support incremental processing primitives like `commit times`, `incremental pull` as first class citizens like Hudi.
+
+## Stream Processing
+
+A popular question, we get is : "How does Hudi relate to stream processing systems?", which we will try to answer here. Simply put, Hudi can integrate with
+batch (`copy-on-write table`) and streaming (`merge-on-read table`) jobs of today, to store the computed results in Hadoop. For Spark apps, this can happen via direct
+integration of Hudi library with Spark/Spark streaming DAGs. In case of Non-Spark processing systems (eg: Flink, Hive), the processing can be done in the respective systems
+and later sent into a Hudi table via a Kafka topic/DFS intermediate file. In more conceptual level, data processing
+pipelines just consist of three components : `source`, `processing`, `sink`, with users ultimately running queries against the sink to use the results of the pipeline.
+Hudi can act as either a source or sink, that stores data on DFS. Applicability of Hudi to a given stream processing pipeline ultimately boils down to suitability
+of PrestoDB/SparkSQL/Hive for your queries.
+
+More advanced use cases revolve around the concepts of [incremental processing](https://www.oreilly.com/ideas/ubers-case-for-incremental-processing-on-hadoop), which effectively
+uses Hudi even inside the `processing` engine to speed up typical batch pipelines. For e.g: Hudi can be used as a state store inside a processing DAG (similar
+to how [rocksDB](https://ci.apache.org/projects/flink/flink-docs-release-1.2/ops/state_backends#the-rocksdbstatebackend) is used by Flink). This is an item on the roadmap
+and will eventually happen as a [Beam Runner](https://issues.apache.org/jira/browse/HUDI-60)
diff --git a/website/versioned_docs/version-0.12.1/concepts.md b/website/versioned_docs/version-0.12.1/concepts.md
new file mode 100644
index 0000000000..8d0adf8dd5
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@@ -0,0 +1,172 @@
+---
+version: 0.6.0
+title: "Concepts"
+keywords: [ hudi, design, table, queries, timeline]
+summary: "Here we introduce some basic concepts & give a broad technical overview of Hudi"
+toc: true
+last_modified_at: 2019-12-30T15:59:57-04:00
+---
+
+Apache Hudi (pronounced “Hudi”) provides the following streaming primitives over hadoop compatible storages
+
+ * Update/Delete Records (how do I change records in a table?)
+ * Change Streams (how do I fetch records that changed?)
+
+In this section, we will discuss key concepts & terminologies that are important to understand, to be able to effectively use these primitives.
+
+## Timeline
+At its core, Hudi maintains a `timeline` of all actions performed on the table at different `instants` of time that helps provide instantaneous views of the table,
+while also efficiently supporting retrieval of data in the order of arrival. A Hudi instant consists of the following components
+
+ * `Instant action` : Type of action performed on the table
+ * `Instant time` : Instant time is typically a timestamp (e.g: 20190117010349), which monotonically increases in the order of action's begin time.
+ * `state` : current state of the instant
+
+Hudi guarantees that the actions performed on the timeline are atomic & timeline consistent based on the instant time.
+
+Key actions performed include
+
+ * `COMMITS` - A commit denotes an **atomic write** of a batch of records into a table.
+ * `CLEANS` - Background activity that gets rid of older versions of files in the table, that are no longer needed.
+ * `DELTA_COMMIT` - A delta commit refers to an **atomic write** of a batch of records into a MergeOnRead type table, where some/all of the data could be just written to delta logs.
+ * `COMPACTION` - Background activity to reconcile differential data structures within Hudi e.g: moving updates from row based log files to columnar formats. Internally, compaction manifests as a special commit on the timeline
+ * `ROLLBACK` - Indicates that a commit/delta commit was unsuccessful & rolled back, removing any partial files produced during such a write
+ * `SAVEPOINT` - Marks certain file groups as "saved", such that cleaner will not delete them. It helps restore the table to a point on the timeline, in case of disaster/data recovery scenarios.
+
+Any given instant can be
+in one of the following states
+
+ * `REQUESTED` - Denotes an action has been scheduled, but has not initiated
+ * `INFLIGHT` - Denotes that the action is currently being performed
+ * `COMPLETED` - Denotes completion of an action on the timeline
+
+<figure>
+ <img className="docimage" src="/assets/images/hudi_timeline.png" alt="hudi_timeline.png" />
+</figure>
+
+Example above shows upserts happenings between 10:00 and 10:20 on a Hudi table, roughly every 5 mins, leaving commit metadata on the Hudi timeline, along
+with other background cleaning/compactions. One key observation to make is that the commit time indicates the `arrival time` of the data (10:20AM), while the actual data
+organization reflects the actual time or `event time`, the data was intended for (hourly buckets from 07:00). These are two key concepts when reasoning about tradeoffs between latency and completeness of data.
+
+When there is late arriving data (data intended for 9:00 arriving >1 hr late at 10:20), we can see the upsert producing new data into even older time buckets/folders.
+With the help of the timeline, an incremental query attempting to get all new data that was committed successfully since 10:00 hours, is able to very efficiently consume
+only the changed files without say scanning all the time buckets > 07:00.
+
+## File management
+Hudi organizes a table into a directory structure under a `basepath` on DFS. Table is broken up into partitions, which are folders containing data files for that partition,
+very similar to Hive tables. Each partition is uniquely identified by its `partitionpath`, which is relative to the basepath.
+
+Within each partition, files are organized into `file groups`, uniquely identified by a `file id`. Each file group contains several
+`file slices`, where each slice contains a base file (`*.parquet`) produced at a certain commit/compaction instant time,
+ along with set of log files (`*.log.*`) that contain inserts/updates to the base file since the base file was produced.
+Hudi adopts a MVCC design, where compaction action merges logs and base files to produce new file slices and cleaning action gets rid of
+unused/older file slices to reclaim space on DFS.
+
+## Index
+Hudi provides efficient upserts, by mapping a given hoodie key (record key + partition path) consistently to a file id, via an indexing mechanism.
+This mapping between record key and file group/file id, never changes once the first version of a record has been written to a file. In short, the
+mapped file group contains all versions of a group of records.
+
+## Table Types & Queries
+Hudi table types define how data is indexed & laid out on the DFS and how the above primitives and timeline activities are implemented on top of such organization (i.e how data is written).
+In turn, `query types` define how the underlying data is exposed to the queries (i.e how data is read).
+
+| Table Type | Supported Query types |
+|-------------- |------------------|
+| Copy On Write | Snapshot Queries + Incremental Queries |
+| Merge On Read | Snapshot Queries + Incremental Queries + Read Optimized Queries |
+
+### Table Types
+Hudi supports the following table types.
+
+ - [Copy On Write](#copy-on-write-table) : Stores data using exclusively columnar file formats (e.g parquet). Updates simply version & rewrite the files by performing a synchronous merge during write.
+ - [Merge On Read](#merge-on-read-table) : Stores data using a combination of columnar (e.g parquet) + row based (e.g avro) file formats. Updates are logged to delta files & later compacted to produce new versions of columnar files synchronously or asynchronously.
+
+Following table summarizes the trade-offs between these two table types
+
+| Trade-off | CopyOnWrite | MergeOnRead |
+|-------------- |------------------| ------------------|
+| Data Latency | Higher | Lower |
+| Update cost (I/O) | Higher (rewrite entire parquet) | Lower (append to delta log) |
+| Parquet File Size | Smaller (high update(I/0) cost) | Larger (low update cost) |
+| Write Amplification | Higher | Lower (depending on compaction strategy) |
+
+
+### Query types
+Hudi supports the following query types
+
+ - **Snapshot Queries** : Queries see the latest snapshot of the table as of a given commit or compaction action. In case of merge on read table, it exposes near-real time data(few mins) by merging
+ the base and delta files of the latest file slice on-the-fly. For copy on write table, it provides a drop-in replacement for existing parquet tables, while providing upsert/delete and other write side features.
+ - **Incremental Queries** : Queries only see new data written to the table, since a given commit/compaction. This effectively provides change streams to enable incremental data pipelines.
+ - **Read Optimized Queries** : Queries see the latest snapshot of table as of a given commit/compaction action. Exposes only the base/columnar files in latest file slices and guarantees the
+ same columnar query performance compared to a non-hudi columnar table.
+
+Following table summarizes the trade-offs between the different query types.
+
+| Trade-off | Snapshot | Read Optimized |
+|-------------- |-------------| ------------------|
+| Data Latency | Lower | Higher
+| Query Latency | Higher (merge base / columnar file + row based delta / log files) | Lower (raw base / columnar file performance)
+
+
+## Copy On Write Table
+
+File slices in Copy-On-Write table only contain the base/columnar file and each commit produces new versions of base files.
+In other words, we implicitly compact on every commit, such that only columnar data exists. As a result, the write amplification
+(number of bytes written for 1 byte of incoming data) is much higher, where read amplification is zero.
+This is a much desired property for analytical workloads, which is predominantly read-heavy.
+
+Following illustrates how this works conceptually, when data written into copy-on-write table and two queries running on top of it.
+
+
+<figure>
+ <img className="docimage" src="/assets/images/hudi_cow.png" alt="hudi_cow.png" />
+</figure>
+
+
+As data gets written, updates to existing file groups produce a new slice for that file group stamped with the commit instant time,
+while inserts allocate a new file group and write its first slice for that file group. These file slices and their commit instant times are color coded above.
+SQL queries running against such a table (eg: `select count(*)` counting the total records in that partition), first checks the timeline for the latest commit
+and filters all but latest file slices of each file group. As you can see, an old query does not see the current inflight commit's files color coded in pink,
+but a new query starting after the commit picks up the new data. Thus queries are immune to any write failures/partial writes and only run on committed data.
+
+The intention of copy on write table, is to fundamentally improve how tables are managed today through
+
+ - First class support for atomically updating data at file-level, instead of rewriting whole tables/partitions
+ - Ability to incremental consume changes, as opposed to wasteful scans or fumbling with heuristics
+ - Tight control of file sizes to keep query performance excellent (small files hurt query performance considerably).
+
+
+## Merge On Read Table
+
+Merge on read table is a superset of copy on write, in the sense it still supports read optimized queries of the table by exposing only the base/columnar files in latest file slices.
+Additionally, it stores incoming upserts for each file group, onto a row based delta log, to support snapshot queries by applying the delta log,
+onto the latest version of each file id on-the-fly during query time. Thus, this table type attempts to balance read and write amplification intelligently, to provide near real-time data.
+The most significant change here, would be to the compactor, which now carefully chooses which delta log files need to be compacted onto
+their columnar base file, to keep the query performance in check (larger delta log files would incur longer merge times with merge data on query side)
+
+Following illustrates how the table works, and shows two types of queries - snapshot query and read optimized query.
+
+<figure>
+ <img className="docimage" src="/assets/images/hudi_mor.png" alt="hudi_mor.png" />
+</figure>
+
+There are lot of interesting things happening in this example, which bring out the subtleties in the approach.
+
+ - We now have commits every 1 minute or so, something we could not do in the other table type.
+ - Within each file id group, now there is an delta log file, which holds incoming updates to the records already present in the base columnar files. In the example, the delta log files hold
+ all the data from 10:05 to 10:10. The base columnar files are still versioned with the commit, as before.
+ Thus, if one were to simply look at base files alone, then the table layout looks exactly like a copy on write table.
+ - A periodic compaction process reconciles these changes from the delta log and produces a new version of base file, just like what happened at 10:05 in the example.
+ - There are two ways of querying the same underlying table: Read Optimized query and Snapshot query, depending on whether we chose query performance or freshness of data.
+ - The semantics around when data from a commit is available to a query changes in a subtle way for a read optimized query. Note, that such a query
+ running at 10:10, wont see data after 10:05 above, while a snapshot query always sees the freshest data.
+ - When we trigger compaction & what it decides to compact hold all the key to solving these hard problems. By implementing a compacting
+ strategy, where we aggressively compact the latest partitions compared to older partitions, we could ensure the read optimized queries see data
+ published within X minutes in a consistent fashion.
+
+The intention of merge on read table is to enable near real-time processing directly on top of DFS, as opposed to copying
+data out to specialized systems, which may not be able to handle the data volume. There are also a few secondary side benefits to
+this table such as reduced write amplification by avoiding synchronous merge of data, i.e, the amount of data written per 1 bytes of data in a batch
+
+
diff --git a/website/versioned_docs/version-0.12.1/concurrency_control.md b/website/versioned_docs/version-0.12.1/concurrency_control.md
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,210 @@
+---
+title: "Concurrency Control"
+summary: In this page, we will discuss how to perform concurrent writes to Hudi Tables.
+toc: true
+last_modified_at: 2021-03-19T15:59:57-04:00
+---
+
+In this section, we will cover Hudi's concurrency model and describe ways to ingest data into a Hudi Table from multiple writers; using the [DeltaStreamer](#deltastreamer) tool as well as
+using the [Hudi datasource](#datasource-writer).
+
+## Supported Concurrency Controls
+
+- **MVCC** : Hudi table services such as compaction, cleaning, clustering leverage Multi Version Concurrency Control to provide snapshot isolation
+between multiple table service writers and readers. Additionally, using MVCC, Hudi provides snapshot isolation between an ingestion writer and multiple concurrent readers.
+ With this model, Hudi supports running any number of table service jobs concurrently, without any concurrency conflict.
+ This is made possible by ensuring that scheduling plans of such table services always happens in a single writer mode to ensure no conflict and avoids race conditions.
+
+- **[NEW] OPTIMISTIC CONCURRENCY** : Write operations such as the ones described above (UPSERT, INSERT) etc, leverage optimistic concurrency control to enable multiple ingestion writers to
+the same Hudi Table. Hudi supports `file level OCC`, i.e., for any 2 commits (or writers) happening to the same table, if they do not have writes to overlapping files being changed, both writers are allowed to succeed.
+ This feature is currently *experimental* and requires either Zookeeper or HiveMetastore to acquire locks.
+
+It may be helpful to understand the different guarantees provided by [write operations](/docs/write_operations/) via Hudi datasource or the delta streamer.
+
+## Single Writer Guarantees
+
+ - *UPSERT Guarantee*: The target table will NEVER show duplicates.
+ - *INSERT Guarantee*: The target table wilL NEVER have duplicates if [dedup](/docs/configurations#hoodiedatasourcewriteinsertdropduplicates) is enabled.
+ - *BULK_INSERT Guarantee*: The target table will NEVER have duplicates if [dedup](/docs/configurations#hoodiedatasourcewriteinsertdropduplicates) is enabled.
+ - *INCREMENTAL PULL Guarantee*: Data consumption and checkpoints are NEVER out of order.
+
+## Multi Writer Guarantees
+
+With multiple writers using OCC, some of the above guarantees change as follows
+
+- *UPSERT Guarantee*: The target table will NEVER show duplicates.
+- *INSERT Guarantee*: The target table MIGHT have duplicates even if [dedup](/docs/configurations#hoodiedatasourcewriteinsertdropduplicates) is enabled.
+- *BULK_INSERT Guarantee*: The target table MIGHT have duplicates even if [dedup](/docs/configurations#hoodiedatasourcewriteinsertdropduplicates) is enabled.
+- *INCREMENTAL PULL Guarantee*: Data consumption and checkpoints MIGHT be out of order due to multiple writer jobs finishing at different times.
+
+## Enabling Multi Writing
+
+The following properties are needed to be set properly to turn on optimistic concurrency control.
+
+```
+hoodie.write.concurrency.mode=optimistic_concurrency_control
+hoodie.cleaner.policy.failed.writes=LAZY
+hoodie.write.lock.provider=<lock-provider-classname>
+```
+
+There are 3 different server based lock providers that require different configuration to be set.
+
+**`Zookeeper`** based lock provider
+
+```
+hoodie.write.lock.provider=org.apache.hudi.client.transaction.lock.ZookeeperBasedLockProvider
+hoodie.write.lock.zookeeper.url
+hoodie.write.lock.zookeeper.port
+hoodie.write.lock.zookeeper.lock_key
+hoodie.write.lock.zookeeper.base_path
+```
+
+**`HiveMetastore`** based lock provider
+
+```
+hoodie.write.lock.provider=org.apache.hudi.hive.HiveMetastoreBasedLockProvider
+hoodie.write.lock.hivemetastore.database
+hoodie.write.lock.hivemetastore.table
+```
+
+`The HiveMetastore URI's are picked up from the hadoop configuration file loaded during runtime.`
+
+**`Amazon DynamoDB`** based lock provider
+
+Amazon DynamoDB based lock provides a simple way to support multi writing across different clusters. You can refer to the
+[DynamoDB based Locks Configurations](https://hudi.apache.org/docs/configurations#DynamoDB-based-Locks-Configurations)
+section for the details of each related configuration knob.
+
+```
+hoodie.write.lock.provider=org.apache.hudi.aws.transaction.lock.DynamoDBBasedLockProvider
+hoodie.write.lock.dynamodb.table (required)
+hoodie.write.lock.dynamodb.partition_key (optional)
+hoodie.write.lock.dynamodb.region (optional)
+hoodie.write.lock.dynamodb.endpoint_url (optional)
+hoodie.write.lock.dynamodb.billing_mode (optional)
+```
+
+When using the DynamoDB-based lock provider, the name of the DynamoDB table acting as the lock table for Hudi is
+specified by the config `hoodie.write.lock.dynamodb.table`. This DynamoDB table is automatically created by Hudi, so you
+don't have to create the table yourself. If you want to use an existing DynamoDB table, make sure that an attribute with
+the name `key` is present in the table. The `key` attribute should be the partition key of the DynamoDB table. The
+config `hoodie.write.lock.dynamodb.partition_key` specifies the value to put for the `key` attribute (not the attribute
+name), which is used for the lock on the same table. By default, `hoodie.write.lock.dynamodb.partition_key` is set to
+the table name, so that multiple writers writing to the same table share the same lock. If you customize the name, make
+sure it's the same across multiple writers.
+
+Also, to set up the credentials for accessing AWS resources, customers can pass the following props to Hudi jobs:
+```
+hoodie.aws.access.key
+hoodie.aws.secret.key
+hoodie.aws.session.token
+```
+If not configured, Hudi falls back to use [DefaultAWSCredentialsProviderChain](https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/auth/DefaultAWSCredentialsProviderChain.html).
+
+IAM policy for your service instance will need to add the following permissions:
+
+```json
+{
+ "Sid":"DynamoDBLocksTable",
+ "Effect": "Allow",
+ "Action": [
+ "dynamodb:CreateTable",
+ "dynamodb:DeleteItem",
+ "dynamodb:DescribeTable",
+ "dynamodb:GetItem",
+ "dynamodb:PutItem",
+ "dynamodb:Scan",
+ "dynamodb:UpdateItem"
+ ],
+ "Resource": "arn:${Partition}:dynamodb:${Region}:${Account}:table/${TableName}"
+}
+```
+- `TableName` : same as `hoodie.write.lock.dynamodb.partition_key`
+- `Region`: same as `hoodie.write.lock.dynamodb.region`
+
+AWS SDK dependencies are not bundled with Hudi from v0.10.x and will need to be added to your classpath.
+Add the following Maven packages (check the latest versions at time of install):
+```
+com.amazonaws:dynamodb-lock-client
+com.amazonaws:aws-java-sdk-dynamodb
+com.amazonaws:aws-java-sdk-core
+```
+
+## Datasource Writer
+
+The `hudi-spark` module offers the DataSource API to write (and read) a Spark DataFrame into a Hudi table.
+
+Following is an example of how to use optimistic_concurrency_control via spark datasource
+
+```java
+inputDF.write.format("hudi")
+ .options(getQuickstartWriteConfigs)
+ .option(PRECOMBINE_FIELD_OPT_KEY, "ts")
+ .option("hoodie.cleaner.policy.failed.writes", "LAZY")
+ .option("hoodie.write.concurrency.mode", "optimistic_concurrency_control")
+ .option("hoodie.write.lock.zookeeper.url", "zookeeper")
+ .option("hoodie.write.lock.zookeeper.port", "2181")
+ .option("hoodie.write.lock.zookeeper.lock_key", "test_table")
+ .option("hoodie.write.lock.zookeeper.base_path", "/test")
+ .option(RECORDKEY_FIELD_OPT_KEY, "uuid")
+ .option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath")
+ .option(TABLE_NAME, tableName)
+ .mode(Overwrite)
+ .save(basePath)
+```
+
+## DeltaStreamer
+
+The `HoodieDeltaStreamer` utility (part of hudi-utilities-bundle) provides ways to ingest from different sources such as DFS or Kafka, with the following capabilities.
+
+Using optimistic_concurrency_control via delta streamer requires adding the above configs to the properties file that can be passed to the
+job. For example below, adding the configs to kafka-source.properties file and passing them to deltastreamer will enable optimistic concurrency.
+A deltastreamer job can then be triggered as follows:
+
+```java
+[hoodie]$ spark-submit --class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer `ls packaging/hudi-utilities-bundle/target/hudi-utilities-bundle-*.jar` \
+ --props file://${PWD}/hudi-utilities/src/test/resources/delta-streamer-config/kafka-source.properties \
+ --schemaprovider-class org.apache.hudi.utilities.schema.SchemaRegistryProvider \
+ --source-class org.apache.hudi.utilities.sources.AvroKafkaSource \
+ --source-ordering-field impresssiontime \
+ --target-base-path file:\/\/\/tmp/hudi-deltastreamer-op \
+ --target-table uber.impressions \
+ --op BULK_INSERT
+```
+
+## Best Practices when using Optimistic Concurrency Control
+
+Concurrent Writing to Hudi tables requires acquiring a lock with either Zookeeper or HiveMetastore. Due to several reasons you might want to configure retries to allow your application to acquire the lock.
+1. Network connectivity or excessive load on servers increasing time for lock acquisition resulting in timeouts
+2. Running a large number of concurrent jobs that are writing to the same hudi table can result in contention during lock acquisition can cause timeouts
+3. In some scenarios of conflict resolution, Hudi commit operations might take upto 10's of seconds while the lock is being held. This can result in timeouts for other jobs waiting to acquire a lock.
+
+Set the correct native lock provider client retries. NOTE that sometimes these settings are set on the server once and all clients inherit the same configs. Please check your settings before enabling optimistic concurrency.
+
+```
+hoodie.write.lock.wait_time_ms
+hoodie.write.lock.num_retries
+```
+
+Set the correct hudi client retries for Zookeeper & HiveMetastore. This is useful in cases when native client retry settings cannot be changed. Please note that these retries will happen in addition to any native client retries that you may have set.
+
+```
+hoodie.write.lock.client.wait_time_ms
+hoodie.write.lock.client.num_retries
+```
+
+*Setting the right values for these depends on a case by case basis; some defaults have been provided for general cases.*
+
+## Disabling Multi Writing
+
+Remove the following settings that were used to enable multi-writer or override with default values.
+
+```
+hoodie.write.concurrency.mode=single_writer
+hoodie.cleaner.policy.failed.writes=EAGER
+```
+
+## Caveats
+
+If you are using the `WriteClient` API, please note that multiple writes to the table need to be initiated from 2 different instances of the write client.
+It is NOT recommended to use the same instance of the write client to perform multi writing.
\ No newline at end of file
diff --git a/website/versioned_docs/version-0.12.1/configurations.md b/website/versioned_docs/version-0.12.1/configurations.md
new file mode 100644
index 0000000000..b7128b14a5
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@@ -0,0 +1,4584 @@
+---
+title: All Configurations
+keywords: [ configurations, default, flink options, spark, configs, parameters ]
+permalink: /docs/configurations.html
+summary: This page covers the different ways of configuring your job to write/read Hudi tables. At a high level, you can control behaviour at few levels.
+toc: true
+last_modified_at: 2022-08-12T13:18:38.885
+---
+
+This page covers the different ways of configuring your job to write/read Hudi tables. At a high level, you can control behaviour at few levels.
+
+- [**Spark Datasource Configs**](#SPARK_DATASOURCE): These configs control the Hudi Spark Datasource, providing ability to define keys/partitioning, pick out the write operation, specify how to merge records or choosing query type to read.
+- [**Flink Sql Configs**](#FLINK_SQL): These configs control the Hudi Flink SQL source/sink connectors, providing ability to define record keys, pick out the write operation, specify how to merge records, enable/disable asynchronous compaction or choosing query type to read.
+- [**Write Client Configs**](#WRITE_CLIENT): Internally, the Hudi datasource uses a RDD based HoodieWriteClient API to actually perform writes to storage. These configs provide deep control over lower level aspects like file sizing, compression, parallelism, compaction, write schema, cleaning etc. Although Hudi provides sane defaults, from time-time these configs may need to be tweaked to optimize for specific workloads.
+- [**Metrics Configs**](#METRICS): These set of configs are used to enable monitoring and reporting of keyHudi stats and metrics.
+- [**Record Payload Config**](#RECORD_PAYLOAD): This is the lowest level of customization offered by Hudi. Record payloads define how to produce new values to upsert based on incoming new record and stored old record. Hudi provides default implementations such as OverwriteWithLatestAvroPayload which simply update table with the latest/last-written record. This can be overridden to a custom class extending HoodieRecordPayload class, on both datasource and WriteClient levels.
+- [**Kafka Connect Configs**](#KAFKA_CONNECT): These set of configs are used for Kafka Connect Sink Connector for writing Hudi Tables
+- [**Amazon Web Services Configs**](#AWS): Please fill in the description for Config Group Name: Amazon Web Services Configs
+
+## Externalized Config File
+Instead of directly passing configuration settings to every Hudi job, you can also centrally set them in a configuration
+file `hudi-default.conf`. By default, Hudi would load the configuration file under `/etc/hudi/conf` directory. You can
+specify a different configuration directory location by setting the `HUDI_CONF_DIR` environment variable. This can be
+useful for uniformly enforcing repeated configs (like Hive sync or write/index tuning), across your entire data lake.
+
+## Spark Datasource Configs {#SPARK_DATASOURCE}
+These configs control the Hudi Spark Datasource, providing ability to define keys/partitioning, pick out the write operation, specify how to merge records or choosing query type to read.
+
+### Read Options {#Read-Options}
+
+Options useful for reading tables via `read.format.option(...)`
+
+
+`Config Class`: org.apache.hudi.DataSourceOptions.scala<br></br>
+> #### hoodie.file.index.enable
+> Enables use of the spark file index implementation for Hudi, that speeds up listing of large tables.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ENABLE_HOODIE_FILE_INDEX`<br></br>
+> `Deprecated Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.datasource.read.paths
+> Comma separated list of file paths to read within a Hudi table.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: READ_PATHS`<br></br>
+
+---
+
+> #### hoodie.datasource.read.incr.filters
+> For use-cases like DeltaStreamer which reads from Hoodie Incremental table and applies opaque map functions, filters appearing late in the sequence of transformations cannot be automatically pushed down. This option allows setting filters directly on Hoodie Source.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: PUSH_DOWN_INCR_FILTERS`<br></br>
+
+---
+
+> #### hoodie.enable.data.skipping
+> Enables data-skipping allowing queries to leverage indexes to reduce the search space by skipping over files<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ENABLE_DATA_SKIPPING`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### as.of.instant
+> The query instant for time travel. Without specified this option, we query the latest snapshot.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TIME_TRAVEL_AS_OF_INSTANT`<br></br>
+
+---
+
+> #### hoodie.datasource.read.schema.use.end.instanttime
+> Uses end instant schema when incrementally fetched data to. Default: users latest instant schema.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INCREMENTAL_READ_SCHEMA_USE_END_INSTANTTIME`<br></br>
+
+---
+
+> #### hoodie.datasource.read.incr.path.glob
+> For the use-cases like users only want to incremental pull from certain partitions instead of the full table. This option allows using glob pattern to directly filter on path.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: INCR_PATH_GLOB`<br></br>
+
+---
+
+> #### hoodie.datasource.read.end.instanttime
+> Instant time to limit incrementally fetched data to. New data written with an instant_time <= END_INSTANTTIME are fetched out.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: END_INSTANTTIME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.precombine.field
+> Field used in preCombining before actual write. When two records have the same key value, we will pick the one with the largest value for the precombine field, determined by Object.compareTo(..)<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: READ_PRE_COMBINE_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.merge.type
+> For Snapshot query on merge on read table, control whether we invoke the record payload implementation to merge (payload_combine) or skip merging altogetherskip_merge<br></br>
+> **Default Value**: payload_combine (Optional)<br></br>
+> `Config Param: REALTIME_MERGE`<br></br>
+
+---
+
+> #### hoodie.datasource.read.extract.partition.values.from.path
+> When set to true, values for partition columns (partition values) will be extracted from physical partition path (default Spark behavior). When set to false partition values will be read from the data file (in Hudi partition columns are persisted by default). This config is a fallback allowing to preserve existing behavior, and should not be used otherwise.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: EXTRACT_PARTITION_VALUES_FROM_PARTITION_PATH`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.schema.on.read.enable
+> Enables support for Schema Evolution feature<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SCHEMA_EVOLUTION_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.read.begin.instanttime
+> Instant time to start incrementally pulling data from. The instanttime here need not necessarily correspond to an instant on the timeline. New data written with an instant_time > BEGIN_INSTANTTIME are fetched out. For e.g: ‘20170901080000’ will get all new data written after Sep 1, 2017 08:00AM.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BEGIN_INSTANTTIME`<br></br>
+
+---
+
+> #### hoodie.datasource.read.incr.fallback.fulltablescan.enable
+> When doing an incremental query whether we should fall back to full table scans if file does not exist.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INCREMENTAL_FALLBACK_TO_FULL_TABLE_SCAN_FOR_NON_EXISTING_FILES`<br></br>
+
+---
+
+> #### hoodie.datasource.query.type
+> Whether data needs to be read, in incremental mode (new data since an instantTime) (or) Read Optimized mode (obtain latest view, based on base files) (or) Snapshot mode (obtain latest view, by merging base and (if any) log files)<br></br>
+> **Default Value**: snapshot (Optional)<br></br>
+> `Config Param: QUERY_TYPE`<br></br>
+
+---
+
+### Write Options {#Write-Options}
+
+You can pass down any of the WriteClient level configs directly using `options()` or `option(k,v)` methods.
+
+```java
+inputDF.write()
+.format("org.apache.hudi")
+.options(clientOpts) // any of the Hudi client opts can be passed in as well
+.option(DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY(), "_row_key")
+.option(DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY(), "partition")
+.option(DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY(), "timestamp")
+.option(HoodieWriteConfig.TABLE_NAME, tableName)
+.mode(SaveMode.Append)
+.save(basePath);
+```
+
+Options useful for writing tables via `write.format.option(...)`
+
+
+`Config Class`: org.apache.hudi.DataSourceOptions.scala<br></br>
+> #### hoodie.clustering.async.enabled
+> Enable running of clustering service, asynchronously as inserts happen on the table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_CLUSTERING_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.datasource.write.operation
+> Whether to do upsert, insert or bulkinsert for the write operation. Use bulkinsert to load new data into a table, and there on use upsert/insert. bulk insert uses a disk based write path to scale to load large inputs without need to cache it.<br></br>
+> **Default Value**: upsert (Optional)<br></br>
+> `Config Param: OPERATION`<br></br>
+
+---
+
+> #### hoodie.datasource.write.reconcile.schema
+> When a new batch of write has records with old schema, but latest table schema got evolved, this config will upgrade the records to leverage latest table schema(default values will be injected to missing fields). If not, the write batch would fail.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: RECONCILE_SCHEMA`<br></br>
+
+---
+
+> #### hoodie.datasource.write.recordkey.field
+> Record key field. Value to be used as the `recordKey` component of `HoodieKey`.
+Actual value will be obtained by invoking .toString() on the field value. Nested fields can be specified using
+the dot notation eg: `a.b.c`<br></br>
+> **Default Value**: uuid (Optional)<br></br>
+> `Config Param: RECORDKEY_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.skip_ro_suffix
+> Skip the _ro suffix for Read optimized table, when registering<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SKIP_RO_SUFFIX_FOR_READ_OPTIMIZED_TABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.urlencode
+> Should we url encode the partition path value, before creating the folder structure.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: URL_ENCODE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.partition_extractor_class
+> Class which implements PartitionValueExtractor to extract the partition values, default 'org.apache.hudi.hive.MultiPartKeysValueExtractor'.<br></br>
+> **Default Value**: org.apache.hudi.hive.MultiPartKeysValueExtractor (Optional)<br></br>
+> `Config Param: HIVE_PARTITION_EXTRACTOR_CLASS`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.serde_properties
+> Serde properties to hive table.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_TABLE_SERDE_PROPERTIES`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.sync_comment
+> Whether to sync the table column comments while syncing the table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_COMMENT`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.password
+> hive password to use<br></br>
+> **Default Value**: hive (Optional)<br></br>
+> `Config Param: HIVE_PASS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.consistent.logical.timestamp.enabled
+> When set to true, consistent value will be generated for a logical timestamp type column, like timestamp-millis and timestamp-micros, irrespective of whether row-writer is enabled. Disabled by default so as not to break the pipeline that deploy either fully row-writer path or non row-writer path. For example, if it is kept disabled then record key of timestamp type with value `2016-12-29 09:54:00` will be written as timestamp `2016-12-29 09:54:00.0` in row-writer path, while it will be [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: KEYGENERATOR_CONSISTENT_LOGICAL_TIMESTAMP_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.support_timestamp
+> ‘INT64’ with original type TIMESTAMP_MICROS is converted to hive ‘timestamp’ type. Disabled by default for backward compatibility.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SUPPORT_TIMESTAMP_TYPE`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.create_managed_table
+> Whether to sync the table as managed table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_CREATE_MANAGED_TABLE`<br></br>
+
+---
+
+> #### hoodie.clustering.inline
+> Turn on inline clustering - clustering will be run after each write operation is complete<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INLINE_CLUSTERING_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.datasource.compaction.async.enable
+> Controls whether async compaction should be turned on for MOR table writing.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ASYNC_COMPACT_ENABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.meta.sync.enable
+> Enable Syncing the Hudi Table with an external meta store or data catalog.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: META_SYNC_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.write.streaming.ignore.failed.batch
+> Config to indicate whether to ignore any non exception error (e.g. writestatus error) within a streaming microbatch<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: STREAMING_IGNORE_FAILED_BATCH`<br></br>
+
+---
+
+> #### hoodie.datasource.write.precombine.field
+> Field used in preCombining before actual write. When two records have the same key value, we will pick the one with the largest value for the precombine field, determined by Object.compareTo(..)<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: PRECOMBINE_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.username
+> hive user name to use<br></br>
+> **Default Value**: hive (Optional)<br></br>
+> `Config Param: HIVE_USER`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.field
+> Partition path field. Value to be used at the partitionPath component of HoodieKey. Actual value ontained by invoking .toString()<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITIONPATH_FIELD`<br></br>
+
+---
+
+> #### hoodie.datasource.write.streaming.retry.count
+> Config to indicate how many times streaming job should retry for a failed micro batch.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: STREAMING_RETRY_CNT`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.partition_fields
+> Field in the table to use for determining hive partition columns.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: HIVE_PARTITION_FIELDS`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.sync_as_datasource
+> <br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_SYNC_AS_DATA_SOURCE_TABLE`<br></br>
+
+---
+
+> #### hoodie.sql.insert.mode
+> Insert mode when insert data to pk-table. The optional modes are: upsert, strict and non-strict.For upsert mode, insert statement do the upsert operation for the pk-table which will update the duplicate record.For strict mode, insert statement will keep the primary key uniqueness constraint which do not allow duplicate record.While for non-strict mode, hudi just do the insert operation for the pk-table.<br></br>
+> **Default Value**: upsert (Optional)<br></br>
+> `Config Param: SQL_INSERT_MODE`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.use_jdbc
+> Use JDBC when hive synchronization is enabled<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_USE_JDBC`<br></br>
+> `Deprecated Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.meta.sync.client.tool.class
+> Sync tool class name used to sync to metastore. Defaults to Hive.<br></br>
+> **Default Value**: org.apache.hudi.hive.HiveSyncTool (Optional)<br></br>
+> `Config Param: META_SYNC_CLIENT_TOOL_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.class
+> Key generator class, that implements `org.apache.hudi.keygen.KeyGenerator`<br></br>
+> **Default Value**: org.apache.hudi.keygen.SimpleKeyGenerator (Optional)<br></br>
+> `Config Param: KEYGENERATOR_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.payload.class
+> Payload class used. Override this, if you like to roll your own merge logic, when upserting/inserting. This will render any value set for PRECOMBINE_FIELD_OPT_VAL in-effective<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.table_properties
+> Additional properties to store with table.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_TABLE_PROPERTIES`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.jdbcurl
+> Hive metastore url<br></br>
+> **Default Value**: jdbc:hive2://localhost:10000 (Optional)<br></br>
+> `Config Param: HIVE_URL`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.batch_num
+> The number of partitions one batch when synchronous partitions to hive.<br></br>
+> **Default Value**: 1000 (Optional)<br></br>
+> `Config Param: HIVE_BATCH_SYNC_PARTITION_NUM`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.assume_date_partitioning
+> Assume partitioning is yyyy/MM/dd<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_ASSUME_DATE_PARTITION`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.bucket_sync
+> Whether sync hive metastore bucket specification when using bucket index.The specification is 'CLUSTERED BY (trace_id) SORTED BY (trace_id ASC) INTO 65536 BUCKETS'<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_BUCKET_SYNC`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.auto_create_database
+> Auto create hive database if does not exists<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_AUTO_CREATE_DATABASE`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.database
+> The name of the destination database that we should sync the hudi table to.<br></br>
+> **Default Value**: default (Optional)<br></br>
+> `Config Param: HIVE_DATABASE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.streaming.retry.interval.ms
+> Config to indicate how long (by millisecond) before a retry should issued for failed microbatch<br></br>
+> **Default Value**: 2000 (Optional)<br></br>
+> `Config Param: STREAMING_RETRY_INTERVAL_MS`<br></br>
+
+---
+
+> #### hoodie.sql.bulk.insert.enable
+> When set to true, the sql insert statement will use bulk insert.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SQL_ENABLE_BULK_INSERT`<br></br>
+
+---
+
+> #### hoodie.datasource.write.commitmeta.key.prefix
+> Option keys beginning with this prefix, are automatically added to the commit/deltacommit metadata. This is useful to store checkpointing information, in a consistent way with the hudi timeline<br></br>
+> **Default Value**: _ (Optional)<br></br>
+> `Config Param: COMMIT_METADATA_KEYPREFIX`<br></br>
+
+---
+
+> #### hoodie.datasource.write.drop.partition.columns
+> When set to true, will not write the partition columns into hudi. By default, false.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: DROP_PARTITION_COLUMNS`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.enable
+> When set to true, register/sync the table to Apache Hive metastore.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.table
+> The name of the destination table that we should sync the hudi table to.<br></br>
+> **Default Value**: unknown (Optional)<br></br>
+> `Config Param: HIVE_TABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.ignore_exceptions
+> Ignore exceptions when syncing with Hive.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_IGNORE_EXCEPTIONS`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.use_pre_apache_input_format
+> Flag to choose InputFormat under com.uber.hoodie package instead of org.apache.hudi package. Use this when you are in the process of migrating from com.uber.hoodie to org.apache.hudi. Stop using this after you migrated the table definition to org.apache.hudi input format<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_USE_PRE_APACHE_INPUT_FORMAT`<br></br>
+
+---
+
+> #### hoodie.datasource.write.table.type
+> The table type for the underlying data, for this write. This can’t change between writes.<br></br>
+> **Default Value**: COPY_ON_WRITE (Optional)<br></br>
+> `Config Param: TABLE_TYPE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.row.writer.enable
+> When set to true, will perform write operations directly using the spark native `Row` representation, avoiding any additional conversion costs.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ENABLE_ROW_WRITER`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Flag to indicate whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.meta_sync.condition.sync
+> If true, only sync on conditions like schema change or partition change.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_CONDITIONAL_SYNC`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.mode
+> Mode to choose for Hive ops. Valid values are hms, jdbc and hiveql.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_SYNC_MODE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.table.name
+> Table name for the datasource write. Also used to register the table into meta stores.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.base_file_format
+> Base file format for the sync.<br></br>
+> **Default Value**: PARQUET (Optional)<br></br>
+> `Config Param: HIVE_BASE_FILE_FORMAT`<br></br>
+
+---
+
+> #### hoodie.deltastreamer.source.kafka.value.deserializer.class
+> This class is used by kafka client to deserialize the records<br></br>
+> **Default Value**: io.confluent.kafka.serializers.KafkaAvroDeserializer (Optional)<br></br>
+> `Config Param: KAFKA_AVRO_VALUE_DESERIALIZER_CLASS`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.datasource.hive_sync.metastore.uris
+> Hive metastore url<br></br>
+> **Default Value**: thrift://localhost:9083 (Optional)<br></br>
+> `Config Param: METASTORE_URIS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.insert.drop.duplicates
+> If set to true, filters out all duplicate records from incoming dataframe, during insert operations.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INSERT_DROP_DUPS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitions.to.delete
+> Comma separated list of partitions to delete<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITIONS_TO_DELETE`<br></br>
+
+---
+
+### PreCommit Validator Configurations {#PreCommit-Validator-Configurations}
+
+The following set of configurations help validate new data before commits.
+
+`Config Class`: org.apache.hudi.config.HoodiePreCommitValidatorConfig<br></br>
+> #### hoodie.precommit.validators.single.value.sql.queries
+> Spark SQL queries to run on table before committing new data to validate state after commit.Multiple queries separated by ';' delimiter are supported.Expected result is included as part of query separated by '#'. Example query: 'query1#result1:query2#result2'Note \<TABLE_NAME\> variable is expected to be present in query.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: SINGLE_VALUE_SQL_QUERIES`<br></br>
+
+---
+
+> #### hoodie.precommit.validators.equality.sql.queries
+> Spark SQL queries to run on table before committing new data to validate state before and after commit. Multiple queries separated by ';' delimiter are supported. Example: "select count(*) from \<TABLE_NAME\> Note \<TABLE_NAME\> is replaced by table state before and after commit.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: EQUALITY_SQL_QUERIES`<br></br>
+
+---
+
+> #### hoodie.precommit.validators
+> Comma separated list of class names that can be invoked to validate commit<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: VALIDATOR_CLASS_NAMES`<br></br>
+
+---
+
+> #### hoodie.precommit.validators.inequality.sql.queries
+> Spark SQL queries to run on table before committing new data to validate state before and after commit.Multiple queries separated by ';' delimiter are supported.Example query: 'select count(*) from \<TABLE_NAME\> where col=null'Note \<TABLE_NAME\> variable is expected to be present in query.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: INEQUALITY_SQL_QUERIES`<br></br>
+
+---
+
+## Flink Sql Configs {#FLINK_SQL}
+These configs control the Hudi Flink SQL source/sink connectors, providing ability to define record keys, pick out the write operation, specify how to merge records, enable/disable asynchronous compaction or choosing query type to read.
+
+### Flink Options {#Flink-Options}
+
+Flink jobs using the SQL can be configured through the options in WITH clause. The actual datasource level configs are listed below.
+
+`Config Class`: org.apache.hudi.configuration.FlinkOptions<br></br>
+> #### compaction.trigger.strategy
+> Strategy to trigger compaction, options are 'num_commits': trigger compaction when reach N delta commits;
+'time_elapsed': trigger compaction when time elapsed > N seconds since last compaction;
+'num_and_time': trigger compaction when both NUM_COMMITS and TIME_ELAPSED are satisfied;
+'num_or_time': trigger compaction when NUM_COMMITS or TIME_ELAPSED is satisfied.
+Default is 'num_commits'<br></br>
+> **Default Value**: num_commits (Optional)<br></br>
+> `Config Param: COMPACTION_TRIGGER_STRATEGY`<br></br>
+
+---
+
+> #### index.state.ttl
+> Index state ttl in days, default stores the index permanently<br></br>
+> **Default Value**: 0.0 (Optional)<br></br>
+> `Config Param: INDEX_STATE_TTL`<br></br>
+
+---
+
+> #### hive_sync.serde_properties
+> Serde properties to hive table, the data format is k1=v1
+k2=v2<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_SYNC_TABLE_SERDE_PROPERTIES`<br></br>
+
+---
+
+> #### hive_sync.table
+> Table name for hive sync, default 'unknown'<br></br>
+> **Default Value**: unknown (Optional)<br></br>
+> `Config Param: HIVE_SYNC_TABLE`<br></br>
+
+---
+
+> #### write.payload.class
+> Payload class used. Override this, if you like to roll your own merge logic, when upserting/inserting.
+This will render any value set for the option in-effective<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### compaction.tasks
+> Parallelism of tasks that do actual compaction, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: COMPACTION_TASKS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING`<br></br>
+
+---
+
+> #### table.type
+> Type of table to write. COPY_ON_WRITE (or) MERGE_ON_READ<br></br>
+> **Default Value**: COPY_ON_WRITE (Optional)<br></br>
+> `Config Param: TABLE_TYPE`<br></br>
+
+---
+
+> #### hive_sync.auto_create_db
+> Auto create hive database if it does not exists, default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_SYNC_AUTO_CREATE_DB`<br></br>
+
+---
+
+> #### compaction.timeout.seconds
+> Max timeout time in seconds for online compaction to rollback, default 20 minutes<br></br>
+> **Default Value**: 1200 (Optional)<br></br>
+> `Config Param: COMPACTION_TIMEOUT_SECONDS`<br></br>
+
+---
+
+> #### hive_sync.username
+> Username for hive sync, default 'hive'<br></br>
+> **Default Value**: hive (Optional)<br></br>
+> `Config Param: HIVE_SYNC_USERNAME`<br></br>
+
+---
+
+> #### write.sort.memory
+> Sort memory in MB, default 128MB<br></br>
+> **Default Value**: 128 (Optional)<br></br>
+> `Config Param: WRITE_SORT_MEMORY`<br></br>
+
+---
+
+> #### write.bulk_insert.shuffle_input
+> Whether to shuffle the inputs by specific fields for bulk insert tasks, default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: WRITE_BULK_INSERT_SHUFFLE_INPUT`<br></br>
+
+---
+
+> #### write.retry.times
+> Flag to indicate how many times streaming job should retry for a failed checkpoint batch.
+By default 3<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: RETRY_TIMES`<br></br>
+
+---
+
+> #### metadata.enabled
+> Enable the internal metadata table which serves table metadata like level file listings, default disabled<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: METADATA_ENABLED`<br></br>
+
+---
+
+> #### write.parquet.max.file.size
+> Target size for parquet files produced by Hudi write phases. For DFS, this needs to be aligned with the underlying filesystem block size for optimal performance.<br></br>
+> **Default Value**: 120 (Optional)<br></br>
+> `Config Param: WRITE_PARQUET_MAX_FILE_SIZE`<br></br>
+
+---
+
+> #### clustering.plan.strategy.daybased.skipfromlatest.partitions
+> Number of partitions to skip from latest when choosing partitions to create ClusteringPlan<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: CLUSTERING_PLAN_STRATEGY_SKIP_PARTITIONS_FROM_LATEST`<br></br>
+
+---
+
+> #### hoodie.bucket.index.hash.field
+> Index key field. Value to be used as hashing to find the bucket ID. Should be a subset of or equal to the recordKey fields.
+Actual value will be obtained by invoking .toString() on the field value. Nested fields can be specified using the dot notation eg: `a.b.c`<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: INDEX_KEY_FIELD`<br></br>
+
+---
+
+> #### hoodie.bucket.index.num.buckets
+> Hudi bucket number per partition. Only affected if using Hudi bucket index.<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: BUCKET_INDEX_NUM_BUCKETS`<br></br>
+
+---
+
+> #### hive_sync.mode
+> Mode to choose for Hive ops. Valid values are hms, jdbc and hiveql, default 'jdbc'<br></br>
+> **Default Value**: jdbc (Optional)<br></br>
+> `Config Param: HIVE_SYNC_MODE`<br></br>
+
+---
+
+> #### write.retry.interval.ms
+> Flag to indicate how long (by millisecond) before a retry should issued for failed checkpoint batch.
+By default 2000 and it will be doubled by every retry<br></br>
+> **Default Value**: 2000 (Optional)<br></br>
+> `Config Param: RETRY_INTERVAL_MS`<br></br>
+
+---
+
+> #### write.partition.format
+> Partition path format, only valid when 'write.datetime.partitioning' is true, default is:
+1) 'yyyyMMddHH' for timestamp(3) WITHOUT TIME ZONE, LONG, FLOAT, DOUBLE, DECIMAL;
+2) 'yyyyMMdd' for DATE and INT.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_FORMAT`<br></br>
+
+---
+
+> #### clustering.async.enabled
+> Async Clustering, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: CLUSTERING_ASYNC_ENABLED`<br></br>
+
+---
+
+> #### clustering.plan.partition.filter.mode
+> Partition filter mode used in the creation of clustering plan. Available values are - NONE: do not filter table partition and thus the clustering plan will include all partitions that have clustering candidate.RECENT_DAYS: keep a continuous range of partitions, worked together with configs 'hoodie.clustering.plan.strategy.daybased.lookback.partitions' and 'hoodie.clustering.plan.strategy.daybased.skipfromlatest.partitions.SELECTED_PARTITIONS: keep partitions that are in the specified r [...]
+> **Default Value**: NONE (Optional)<br></br>
+> `Config Param: CLUSTERING_PLAN_PARTITION_FILTER_MODE_NAME`<br></br>
+
+---
+
+> #### hive_sync.db
+> Database name for hive sync, default 'default'<br></br>
+> **Default Value**: default (Optional)<br></br>
+> `Config Param: HIVE_SYNC_DB`<br></br>
+
+---
+
+> #### clustering.plan.strategy.sort.columns
+> Columns to sort the data by when clustering<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: CLUSTERING_SORT_COLUMNS`<br></br>
+
+---
+
+> #### compaction.schedule.enabled
+> Schedule the compaction plan, enabled by default for MOR<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMPACTION_SCHEDULE_ENABLED`<br></br>
+
+---
+
+> #### hive_sync.partition_extractor_class
+> Tool to extract the partition value from HDFS path, default 'SlashEncodedDayPartitionValueExtractor'<br></br>
+> **Default Value**: org.apache.hudi.hive.SlashEncodedDayPartitionValueExtractor (Optional)<br></br>
+> `Config Param: HIVE_SYNC_PARTITION_EXTRACTOR_CLASS_NAME`<br></br>
+
+---
+
+> #### write.precombine
+> Flag to indicate whether to drop duplicates before insert/upsert.
+By default these cases will accept duplicates, to gain extra performance:
+1) insert operation;
+2) upsert for MOR table, the MOR table deduplicate on reading<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: PRE_COMBINE`<br></br>
+
+---
+
+> #### write.batch.size
+> Batch buffer size in MB to flush data into the underneath filesystem, default 256MB<br></br>
+> **Default Value**: 256.0 (Optional)<br></br>
+> `Config Param: WRITE_BATCH_SIZE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.class
+> Key generator class, that implements will extract the key out of incoming record<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KEYGEN_CLASS_NAME`<br></br>
+
+---
+
+> #### index.global.enabled
+> Whether to update index for the old partition path
+if same key record with different partition path came in, default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: INDEX_GLOBAL_ENABLED`<br></br>
+
+---
+
+> #### clustering.delta_commits
+> Max delta commits needed to trigger clustering, default 4 commits<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: CLUSTERING_DELTA_COMMITS`<br></br>
+
+---
+
+> #### path
+> Base path for the target hoodie table.
+The path would be created if it does not exist,
+otherwise a Hoodie table expects to be initialized successfully<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PATH`<br></br>
+
+---
+
+> #### index.bootstrap.enabled
+> Whether to bootstrap the index state from existing hoodie table, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INDEX_BOOTSTRAP_ENABLED`<br></br>
+
+---
+
+> #### read.streaming.skip_compaction
+> Whether to skip compaction instants for streaming read,
+there are two cases that this option can be used to avoid reading duplicates:
+1) you are definitely sure that the consumer reads faster than any compaction instants, usually with delta time compaction strategy that is long enough, for e.g, one week;
+2) changelog mode is enabled, this option is a solution to keep data integrity<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: READ_STREAMING_SKIP_COMPACT`<br></br>
+
+---
+
+> #### compaction.async.enabled
+> Async Compaction, enabled by default for MOR<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMPACTION_ASYNC_ENABLED`<br></br>
+
+---
+
+> #### hive_sync.ignore_exceptions
+> Ignore exceptions during hive synchronization, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_IGNORE_EXCEPTIONS`<br></br>
+
+---
+
+> #### hive_sync.table_properties
+> Additional properties to store with table, the data format is k1=v1
+k2=v2<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_SYNC_TABLE_PROPERTIES`<br></br>
+
+---
+
+> #### write.ignore.failed
+> Flag to indicate whether to ignore any non exception error (e.g. writestatus error). within a checkpoint batch.
+By default true (in favor of streaming progressing over data integrity)<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: IGNORE_FAILED`<br></br>
+
+---
+
+> #### write.commit.ack.timeout
+> Timeout limit for a writer task after it finishes a checkpoint and
+waits for the instant commit success, only for internal use<br></br>
+> **Default Value**: -1 (Optional)<br></br>
+> `Config Param: WRITE_COMMIT_ACK_TIMEOUT`<br></br>
+
+---
+
+> #### write.operation
+> The write operation, that this write should do<br></br>
+> **Default Value**: upsert (Optional)<br></br>
+> `Config Param: OPERATION`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.field
+> Partition path field. Value to be used at the `partitionPath` component of `HoodieKey`.
+Actual value obtained by invoking .toString(), default ''<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: PARTITION_PATH_FIELD`<br></br>
+
+---
+
+> #### write.bucket_assign.tasks
+> Parallelism of tasks that do bucket assign, default is the parallelism of the execution environment<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BUCKET_ASSIGN_TASKS`<br></br>
+
+---
+
+> #### compaction.delta_commits
+> Max delta commits needed to trigger compaction, default 5 commits<br></br>
+> **Default Value**: 5 (Optional)<br></br>
+> `Config Param: COMPACTION_DELTA_COMMITS`<br></br>
+
+---
+
+> #### partition.default_name
+> The default partition name in case the dynamic partition column value is null/empty string<br></br>
+> **Default Value**: __HIVE_DEFAULT_PARTITION__ (Optional)<br></br>
+> `Config Param: PARTITION_DEFAULT_NAME`<br></br>
+
+---
+
+> #### write.bulk_insert.sort_input
+> Whether to sort the inputs by specific fields for bulk insert tasks, default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: WRITE_BULK_INSERT_SORT_INPUT`<br></br>
+
+---
+
+> #### clustering.plan.strategy.small.file.limit
+> Files smaller than the size specified here are candidates for clustering, default 600 MB<br></br>
+> **Default Value**: 600 (Optional)<br></br>
+> `Config Param: CLUSTERING_PLAN_STRATEGY_SMALL_FILE_LIMIT`<br></br>
+
+---
+
+> #### clustering.schedule.enabled
+> Schedule the cluster plan, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: CLUSTERING_SCHEDULE_ENABLED`<br></br>
+
+---
+
+> #### compaction.target_io
+> Target IO in MB for per compaction (both read and write), default 500 GB<br></br>
+> **Default Value**: 512000 (Optional)<br></br>
+> `Config Param: COMPACTION_TARGET_IO`<br></br>
+
+---
+
+> #### clustering.plan.strategy.class
+> Config to provide a strategy class (subclass of ClusteringPlanStrategy) to create clustering plan i.e select what file groups are being clustered. Default strategy, looks at the last N (determined by clustering.plan.strategy.daybased.lookback.partitions) day based partitions picks the small file slices within those partitions.<br></br>
+> **Default Value**: org.apache.hudi.client.clustering.plan.strategy.FlinkSizeBasedClusteringPlanStrategy (Optional)<br></br>
+> `Config Param: CLUSTERING_PLAN_STRATEGY_CLASS`<br></br>
+
+---
+
+> #### write.log_block.size
+> Max log block size in MB for log file, default 128MB<br></br>
+> **Default Value**: 128 (Optional)<br></br>
+> `Config Param: WRITE_LOG_BLOCK_SIZE`<br></br>
+
+---
+
+> #### write.tasks
+> Parallelism of tasks that do actual write, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: WRITE_TASKS`<br></br>
+
+---
+
+> #### clean.async.enabled
+> Whether to cleanup the old commits immediately on new commits, enabled by default<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: CLEAN_ASYNC_ENABLED`<br></br>
+
+---
+
+> #### clean.retain_commits
+> Number of commits to retain. So data will be retained for num_of_commits * time_between_commits (scheduled).
+This also directly translates into how much you can incrementally pull on this table, default 30<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: CLEAN_RETAIN_COMMITS`<br></br>
+
+---
+
+> #### archive.max_commits
+> Max number of commits to keep before archiving older commits into a sequential log, default 50<br></br>
+> **Default Value**: 50 (Optional)<br></br>
+> `Config Param: ARCHIVE_MAX_COMMITS`<br></br>
+
+---
+
+> #### write.index_bootstrap.tasks
+> Parallelism of tasks that do index bootstrap, default is the parallelism of the execution environment<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: INDEX_BOOTSTRAP_TASKS`<br></br>
+
+---
+
+> #### write.task.max.size
+> Maximum memory in MB for a write task, when the threshold hits,
+it flushes the max size data bucket to avoid OOM, default 1GB<br></br>
+> **Default Value**: 1024.0 (Optional)<br></br>
+> `Config Param: WRITE_TASK_MAX_SIZE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.recordkey.field
+> Record key field. Value to be used as the `recordKey` component of `HoodieKey`.
+Actual value will be obtained by invoking .toString() on the field value. Nested fields can be specified using the dot notation eg: `a.b.c`<br></br>
+> **Default Value**: uuid (Optional)<br></br>
+> `Config Param: RECORD_KEY_FIELD`<br></br>
+
+---
+
+> #### compaction.delta_seconds
+> Max delta seconds time needed to trigger compaction, default 1 hour<br></br>
+> **Default Value**: 3600 (Optional)<br></br>
+> `Config Param: COMPACTION_DELTA_SECONDS`<br></br>
+
+---
+
+> #### hive_sync.partition_fields
+> Partition fields for hive sync, default ''<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: HIVE_SYNC_PARTITION_FIELDS`<br></br>
+
+---
+
+> #### read.streaming.enabled
+> Whether to read as streaming source, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: READ_AS_STREAMING`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.type
+> Key generator type, that implements will extract the key out of incoming record<br></br>
+> **Default Value**: SIMPLE (Optional)<br></br>
+> `Config Param: KEYGEN_TYPE`<br></br>
+
+---
+
+> #### clean.retain_file_versions
+> Number of file versions to retain. default 5<br></br>
+> **Default Value**: 5 (Optional)<br></br>
+> `Config Param: CLEAN_RETAIN_FILE_VERSIONS`<br></br>
+
+---
+
+> #### compaction.max_memory
+> Max memory in MB for compaction spillable map, default 100MB<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: COMPACTION_MAX_MEMORY`<br></br>
+
+---
+
+> #### hive_sync.support_timestamp
+> INT64 with original type TIMESTAMP_MICROS is converted to hive timestamp type.
+Disabled by default for backward compatibility.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_SYNC_SUPPORT_TIMESTAMP`<br></br>
+
+---
+
+> #### hive_sync.skip_ro_suffix
+> Skip the _ro suffix for Read optimized table when registering, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_SKIP_RO_SUFFIX`<br></br>
+
+---
+
+> #### metadata.compaction.delta_commits
+> Max delta commits for metadata table to trigger compaction, default 10<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: METADATA_COMPACTION_DELTA_COMMITS`<br></br>
+
+---
+
+> #### hive_sync.assume_date_partitioning
+> Assume partitioning is yyyy/mm/dd, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_ASSUME_DATE_PARTITION`<br></br>
+
+---
+
+> #### write.parquet.block.size
+> Parquet RowGroup size. It's recommended to make this large enough that scan costs can be amortized by packing enough column values into a single row group.<br></br>
+> **Default Value**: 120 (Optional)<br></br>
+> `Config Param: WRITE_PARQUET_BLOCK_SIZE`<br></br>
+
+---
+
+> #### clustering.plan.strategy.target.file.max.bytes
+> Each group can produce 'N' (CLUSTERING_MAX_GROUP_SIZE/CLUSTERING_TARGET_FILE_SIZE) output file groups, default 1 GB<br></br>
+> **Default Value**: 1073741824 (Optional)<br></br>
+> `Config Param: CLUSTERING_PLAN_STRATEGY_TARGET_FILE_MAX_BYTES`<br></br>
+
+---
+
+> #### clustering.tasks
+> Parallelism of tasks that do actual clustering, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: CLUSTERING_TASKS`<br></br>
+
+---
+
+> #### hive_sync.enable
+> Asynchronously sync Hive meta to HMS, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_SYNC_ENABLED`<br></br>
+
+---
+
+> #### changelog.enabled
+> Whether to keep all the intermediate changes, we try to keep all the changes of a record when enabled:
+1). The sink accept the UPDATE_BEFORE message;
+2). The source try to emit every changes of a record.
+The semantics is best effort because the compaction job would finally merge all changes of a record into one.
+ default false to have UPSERT semantics<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: CHANGELOG_ENABLED`<br></br>
+
+---
+
+> #### read.streaming.check-interval
+> Check interval for streaming read of SECOND, default 1 minute<br></br>
+> **Default Value**: 60 (Optional)<br></br>
+> `Config Param: READ_STREAMING_CHECK_INTERVAL`<br></br>
+
+---
+
+> #### hoodie.datasource.merge.type
+> For Snapshot query on merge on read table. Use this key to define how the payloads are merged, in
+1) skip_merge: read the base file records plus the log file records;
+2) payload_combine: read the base file records first, for each record in base file, checks whether the key is in the
+ log file records(combines the two records with same key for base and log file records), then read the left log file records<br></br>
+> **Default Value**: payload_combine (Optional)<br></br>
+> `Config Param: MERGE_TYPE`<br></br>
+
+---
+
+> #### read.tasks
+> Parallelism of tasks that do actual read, default is 4<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: READ_TASKS`<br></br>
+
+---
+
+> #### read.end-commit
+> End commit instant for reading, the commit time format should be 'yyyyMMddHHmmss'<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: READ_END_COMMIT`<br></br>
+
+---
+
+> #### write.log.max.size
+> Maximum size allowed in MB for a log file before it is rolled over to the next version, default 1GB<br></br>
+> **Default Value**: 1024 (Optional)<br></br>
+> `Config Param: WRITE_LOG_MAX_SIZE`<br></br>
+
+---
+
+> #### clustering.plan.strategy.daybased.lookback.partitions
+> Number of partitions to list to create ClusteringPlan, default is 2<br></br>
+> **Default Value**: 2 (Optional)<br></br>
+> `Config Param: CLUSTERING_TARGET_PARTITIONS`<br></br>
+
+---
+
+> #### hive_sync.file_format
+> File format for hive sync, default 'PARQUET'<br></br>
+> **Default Value**: PARQUET (Optional)<br></br>
+> `Config Param: HIVE_SYNC_FILE_FORMAT`<br></br>
+
+---
+
+> #### clustering.plan.strategy.max.num.groups
+> Maximum number of groups to create as part of ClusteringPlan. Increasing groups will increase parallelism, default is 30<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: CLUSTERING_MAX_NUM_GROUPS`<br></br>
+
+---
+
+> #### index.type
+> Index type of Flink write job, default is using state backed index.<br></br>
+> **Default Value**: FLINK_STATE (Optional)<br></br>
+> `Config Param: INDEX_TYPE`<br></br>
+
+---
+
+> #### read.data.skipping.enabled
+> Enables data-skipping allowing queries to leverage indexes to reduce the search space byskipping over files<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: READ_DATA_SKIPPING_ENABLED`<br></br>
+
+---
+
+> #### clean.policy
+> Clean policy to manage the Hudi table. Available option: KEEP_LATEST_COMMITS, KEEP_LATEST_FILE_VERSIONS, KEEP_LATEST_BY_HOURS.Default is KEEP_LATEST_COMMITS.<br></br>
+> **Default Value**: KEEP_LATEST_COMMITS (Optional)<br></br>
+> `Config Param: CLEAN_POLICY`<br></br>
+
+---
+
+> #### hive_sync.password
+> Password for hive sync, default 'hive'<br></br>
+> **Default Value**: hive (Optional)<br></br>
+> `Config Param: HIVE_SYNC_PASSWORD`<br></br>
+
+---
+
+> #### hive_sync.use_jdbc
+> Use JDBC when hive synchronization is enabled, default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: HIVE_SYNC_USE_JDBC`<br></br>
+
+---
+
+> #### hive_sync.jdbc_url
+> Jdbc URL for hive sync, default 'jdbc:hive2://localhost:10000'<br></br>
+> **Default Value**: jdbc:hive2://localhost:10000 (Optional)<br></br>
+> `Config Param: HIVE_SYNC_JDBC_URL`<br></br>
+
+---
+
+> #### read.start-commit
+> Start commit instant for reading, the commit time format should be 'yyyyMMddHHmmss', by default reading from the latest instant for streaming read<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: READ_START_COMMIT`<br></br>
+
+---
+
+> #### archive.min_commits
+> Min number of commits to keep before archiving older commits into a sequential log, default 40<br></br>
+> **Default Value**: 40 (Optional)<br></br>
+> `Config Param: ARCHIVE_MIN_COMMITS`<br></br>
+
+---
+
+> #### index.partition.regex
+> Whether to load partitions in state if partition path matching， default `*`<br></br>
+> **Default Value**: .* (Optional)<br></br>
+> `Config Param: INDEX_PARTITION_REGEX`<br></br>
+
+---
+
+> #### hoodie.table.name
+> Table name to register to Hive metastore<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.urlencode
+> Whether to encode the partition path url, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: URL_ENCODE_PARTITIONING`<br></br>
+
+---
+
+> #### source.avro-schema.path
+> Source avro schema file path, the parsed schema is used for deserialization<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: SOURCE_AVRO_SCHEMA_PATH`<br></br>
+
+---
+
+> #### write.insert.cluster
+> Whether to merge small files for insert mode, if true, the write throughput will decrease because the read/write of existing small file, only valid for COW table, default false<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INSERT_CLUSTER`<br></br>
+
+---
+
+> #### source.avro-schema
+> Source avro schema string, the parsed schema is used for deserialization<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: SOURCE_AVRO_SCHEMA`<br></br>
+
+---
+
+> #### hive_sync.conf.dir
+> The hive configuration directory, where the hive-site.xml lies in, the file should be put on the client machine<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_SYNC_CONF_DIR`<br></br>
+
+---
+
+> #### write.rate.limit
+> Write record rate limit per second to prevent traffic jitter and improve stability, default 0 (no limit)<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: WRITE_RATE_LIMIT`<br></br>
+
+---
+
+> #### clean.retain_hours
+> Number of hours for which commits need to be retained. This config provides a more flexible option ascompared to number of commits retained for cleaning service. Setting this property ensures all the files, but the latest in a file group, corresponding to commits with commit times older than the configured number of hours to be retained are cleaned.<br></br>
+> **Default Value**: 24 (Optional)<br></br>
+> `Config Param: CLEAN_RETAIN_HOURS`<br></br>
+
+---
+
+> #### read.utc-timezone
+> Use UTC timezone or local timezone to the conversion between epoch time and LocalDateTime. Hive 0.x/1.x/2.x use local timezone. But Hive 3.x use UTC timezone, by default true<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: UTC_TIMEZONE`<br></br>
+
+---
+
+> #### hoodie.datasource.query.type
+> Decides how data files need to be read, in
+1) Snapshot mode (obtain latest view, based on row & columnar data);
+2) incremental mode (new data since an instantTime);
+3) Read Optimized mode (obtain latest view, based on columnar data)
+.Default: snapshot<br></br>
+> **Default Value**: snapshot (Optional)<br></br>
+> `Config Param: QUERY_TYPE`<br></br>
+
+---
+
+> #### write.precombine.field
+> Field used in preCombining before actual write. When two records have the same
+key value, we will pick the one with the largest value for the precombine field,
+determined by Object.compareTo(..)<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: PRECOMBINE_FIELD`<br></br>
+
+---
+
+> #### write.parquet.page.size
+> Parquet page size. Page is the unit of read within a parquet file. Within a block, pages are compressed separately.<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: WRITE_PARQUET_PAGE_SIZE`<br></br>
+
+---
+
+> #### hive_sync.metastore.uris
+> Metastore uris for hive sync, default ''<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: HIVE_SYNC_METASTORE_URIS`<br></br>
+
+---
+
+> #### write.merge.max_memory
+> Max memory in MB for merge, default 100MB<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: WRITE_MERGE_MAX_MEMORY`<br></br>
+
+---
+
+## Write Client Configs {#WRITE_CLIENT}
+Internally, the Hudi datasource uses a RDD based HoodieWriteClient API to actually perform writes to storage. These configs provide deep control over lower level aspects like file sizing, compression, parallelism, compaction, write schema, cleaning etc. Although Hudi provides sane defaults, from time-time these configs may need to be tweaked to optimize for specific workloads.
+
+### Layout Configs {#Layout-Configs}
+
+Configurations that control storage layout and data distribution, which defines how the files are organized within a table.
+
+`Config Class`: org.apache.hudi.config.HoodieLayoutConfig<br></br>
+> #### hoodie.storage.layout.type
+> Type of storage layout. Possible options are [DEFAULT | BUCKET]<br></br>
+> **Default Value**: DEFAULT (Optional)<br></br>
+> `Config Param: LAYOUT_TYPE`<br></br>
+
+---
+
+> #### hoodie.storage.layout.partitioner.class
+> Partitioner class, it is used to distribute data in a specific way.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: LAYOUT_PARTITIONER_CLASS_NAME`<br></br>
+
+---
+
+### Write commit callback configs {#Write-commit-callback-configs}
+
+Controls callback behavior into HTTP endpoints, to push notifications on commits on hudi tables.
+
+`Config Class`: org.apache.hudi.config.HoodieWriteCommitCallbackConfig<br></br>
+> #### hoodie.write.commit.callback.on
+> Turn commit callback on/off. off by default.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: TURN_CALLBACK_ON`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.http.url
+> Callback host to be sent along with callback messages<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: CALLBACK_HTTP_URL`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.http.timeout.seconds
+> Callback timeout in seconds. 3 by default<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: CALLBACK_HTTP_TIMEOUT_IN_SECONDS`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.class
+> Full path of callback class and must be a subclass of HoodieWriteCommitCallback class, org.apache.hudi.callback.impl.HoodieWriteCommitHttpCallback by default<br></br>
+> **Default Value**: org.apache.hudi.callback.impl.HoodieWriteCommitHttpCallback (Optional)<br></br>
+> `Config Param: CALLBACK_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.http.api.key
+> Http callback API key. hudi_write_commit_http_callback by default<br></br>
+> **Default Value**: hudi_write_commit_http_callback (Optional)<br></br>
+> `Config Param: CALLBACK_HTTP_API_KEY_VALUE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+### Clean Configs {#Clean-Configs}
+
+Cleaning (reclamation of older/unused file groups/slices).
+
+`Config Class`: org.apache.hudi.config.HoodieCleanConfig<br></br>
+> #### hoodie.cleaner.fileversions.retained
+> When KEEP_LATEST_FILE_VERSIONS cleaning policy is used, the minimum number of file slices to retain in each file group, during cleaning.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: CLEANER_FILE_VERSIONS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.clean.max.commits
+> Number of commits after the last clean operation, before scheduling of a new clean is attempted.<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: CLEAN_MAX_COMMITS`<br></br>
+
+---
+
+> #### hoodie.clean.allow.multiple
+> Allows scheduling/executing multiple cleans by enabling this config. If users prefer to strictly ensure clean requests should be mutually exclusive, .i.e. a 2nd clean will not be scheduled if another clean is not yet completed to avoid repeat cleaning of same files, they might want to disable this config.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ALLOW_MULTIPLE_CLEANS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clean.automatic
+> When enabled, the cleaner table service is invoked immediately after each commit, to delete older file slices. It's recommended to enable this, to ensure metadata and data storage growth is bounded.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: AUTO_CLEAN`<br></br>
+
+---
+
+> #### hoodie.cleaner.parallelism
+> Parallelism for the cleaning operation. Increase this if cleaning becomes slow.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: CLEANER_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.cleaner.incremental.mode
+> When enabled, the plans for each cleaner service run is computed incrementally off the events in the timeline, since the last cleaner run. This is much more efficient than obtaining listings for the full table for each planning (even with a metadata table).<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: CLEANER_INCREMENTAL_MODE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.clean.async
+> Only applies when hoodie.clean.automatic is turned on. When turned on runs cleaner async with writing, which can speed up overall write performance.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_CLEAN`<br></br>
+
+---
+
+> #### hoodie.clean.trigger.strategy
+> Controls how cleaning is scheduled. Valid options: NUM_COMMITS<br></br>
+> **Default Value**: NUM_COMMITS (Optional)<br></br>
+> `Config Param: CLEAN_TRIGGER_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.cleaner.delete.bootstrap.base.file
+> When set to true, cleaner also deletes the bootstrap base file when it's skeleton base file is cleaned. Turn this to true, if you want to ensure the bootstrap dataset storage is reclaimed over time, as the table receives updates/deletes. Another reason to turn this on, would be to ensure data residing in bootstrap base files are also physically deleted, to comply with data privacy enforcement processes.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: CLEANER_BOOTSTRAP_BASE_FILE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.cleaner.hours.retained
+> Number of hours for which commits need to be retained. This config provides a more flexible option ascompared to number of commits retained for cleaning service. Setting this property ensures all the files, but the latest in a file group, corresponding to commits with commit times older than the configured number of hours to be retained are cleaned.<br></br>
+> **Default Value**: 24 (Optional)<br></br>
+> `Config Param: CLEANER_HOURS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.cleaner.commits.retained
+> Number of commits to retain, without cleaning. This will be retained for num_of_commits * time_between_commits (scheduled). This also directly translates into how much data retention the table supports for incremental queries.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: CLEANER_COMMITS_RETAINED`<br></br>
+
+---
+
+> #### hoodie.cleaner.policy.failed.writes
+> Cleaning policy for failed writes to be used. Hudi will delete any files written by failed writes to re-claim space. Choose to perform this rollback of failed writes eagerly before every writer starts (only supported for single writer) or lazily by the cleaner (required for multi-writers)<br></br>
+> **Default Value**: EAGER (Optional)<br></br>
+> `Config Param: FAILED_WRITES_CLEANER_POLICY`<br></br>
+
+---
+
+> #### hoodie.cleaner.policy
+> Cleaning policy to be used. The cleaner service deletes older file slices files to re-claim space. By default, cleaner spares the file slices written by the last N commits, determined by hoodie.cleaner.commits.retained Long running query plans may often refer to older file slices and will break if those are cleaned, before the query has had a chance to run. So, it is good to make sure that the data is retained for more than the maximum query execution time<br></br>
+> **Default Value**: KEEP_LATEST_COMMITS (Optional)<br></br>
+> `Config Param: CLEANER_POLICY`<br></br>
+
+---
+
+### Metastore Configs {#Metastore-Configs}
+
+Configurations used by the Hudi Metastore.
+
+`Config Class`: org.apache.hudi.common.config.HoodieMetastoreConfig<br></br>
+> #### hoodie.metastore.uris
+> Metastore server uris<br></br>
+> **Default Value**: thrift://localhost:9090 (Optional)<br></br>
+> `Config Param: METASTORE_URLS`<br></br>
+
+---
+
+> #### hoodie.metastore.enable
+> Use metastore server to store hoodie table metadata<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: METASTORE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.metastore.connect.retries
+> Number of retries while opening a connection to metastore<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: METASTORE_CONNECTION_RETRIES`<br></br>
+
+---
+
+> #### hoodie.metastore.connect.retry.delay
+> Number of seconds for the client to wait between consecutive connection attempts<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: METASTORE_CONNECTION_RETRY_DELAY`<br></br>
+
+---
+
+### Table Configurations {#Table-Configurations}
+
+Configurations that persist across writes and read on a Hudi table like base, log file formats, table name, creation schema, table version layouts. Configurations are loaded from hoodie.properties, these properties are usually set during initializing a path as hoodie base path and rarely changes during the lifetime of the table. Writers/Queries' configurations are validated against these each time for compatibility.
+
+`Config Class`: org.apache.hudi.common.table.HoodieTableConfig<br></br>
+> #### hoodie.table.precombine.field
+> Field used in preCombining before actual write. By default, when two records have the same key value, the largest value for the precombine field determined by Object.compareTo(..), is picked.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PRECOMBINE_FIELD`<br></br>
+
+---
+
+> #### hoodie.archivelog.folder
+> path under the meta folder, to store archived timeline instants at.<br></br>
+> **Default Value**: archived (Optional)<br></br>
+> `Config Param: ARCHIVELOG_FOLDER`<br></br>
+
+---
+
+> #### hoodie.table.type
+> The table type for the underlying data, for this write. This can’t change between writes.<br></br>
+> **Default Value**: COPY_ON_WRITE (Optional)<br></br>
+> `Config Param: TYPE`<br></br>
+
+---
+
+> #### hoodie.table.timeline.timezone
+> User can set hoodie commit timeline timezone, such as utc, local and so on. local is default<br></br>
+> **Default Value**: LOCAL (Optional)<br></br>
+> `Config Param: TIMELINE_TIMEZONE`<br></br>
+
+---
+
+> #### hoodie.partition.metafile.use.base.format
+> If true, partition metafiles are saved in the same format as base-files for this dataset (e.g. Parquet / ORC). If false (default) partition metafiles are saved as properties files.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: PARTITION_METAFILE_USE_BASE_FORMAT`<br></br>
+
+---
+
+> #### hoodie.table.checksum
+> Table checksum is used to guard against partial writes in HDFS. It is added as the last entry in hoodie.properties and then used to validate while reading table config.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_CHECKSUM`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.table.create.schema
+> Schema used when creating the table, for the first time.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: CREATE_SCHEMA`<br></br>
+
+---
+
+> #### hoodie.table.recordkey.fields
+> Columns used to uniquely identify the table. Concatenated values of these fields are used as the record key component of HoodieKey.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: RECORDKEY_FIELDS`<br></br>
+
+---
+
+> #### hoodie.table.log.file.format
+> Log format used for the delta logs.<br></br>
+> **Default Value**: HOODIE_LOG (Optional)<br></br>
+> `Config Param: LOG_FILE_FORMAT`<br></br>
+
+---
+
+> #### hoodie.bootstrap.index.enable
+> Whether or not, this is a bootstrapped table, with bootstrap base data and an mapping index defined, default true.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BOOTSTRAP_INDEX_ENABLE`<br></br>
+
+---
+
+> #### hoodie.table.metadata.partitions
+> Comma-separated list of metadata partitions that have been completely built and in-sync with data table. These partitions are ready for use by the readers<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_METADATA_PARTITIONS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.table.metadata.partitions.inflight
+> Comma-separated list of metadata partitions whose building is in progress. These partitions are not yet ready for use by the readers.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLE_METADATA_PARTITIONS_INFLIGHT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.table.partition.fields
+> Fields used to partition the table. Concatenated values of these fields are used as the partition path, by invoking toString()<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_FIELDS`<br></br>
+
+---
+
+> #### hoodie.populate.meta.fields
+> When enabled, populates all meta fields. When disabled, no meta fields are populated and incremental queries will not be functional. This is only meant to be used for append only/immutable data for batch processing<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: POPULATE_META_FIELDS`<br></br>
+
+---
+
+> #### hoodie.compaction.payload.class
+> Payload class to use for performing compactions, i.e merge delta logs with current base file and then produce a new base file.<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.bootstrap.index.class
+> Implementation to use, for mapping base files to bootstrap base file, that contain actual data.<br></br>
+> **Default Value**: org.apache.hudi.common.bootstrap.index.HFileBootstrapIndex (Optional)<br></br>
+> `Config Param: BOOTSTRAP_INDEX_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.urlencode
+> Should we url encode the partition path value, before creating the folder structure.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: URL_ENCODE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Flag to indicate whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING_ENABLE`<br></br>
+
+---
+
+> #### hoodie.table.keygenerator.class
+> Key Generator class property for the hoodie table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KEY_GENERATOR_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.table.version
+> Version of table, used for running upgrade/downgrade steps between releases with potentially breaking/backwards compatible changes.<br></br>
+> **Default Value**: ZERO (Optional)<br></br>
+> `Config Param: VERSION`<br></br>
+
+---
+
+> #### hoodie.table.base.file.format
+> Base file format to store all the base file data.<br></br>
+> **Default Value**: PARQUET (Optional)<br></br>
+> `Config Param: BASE_FILE_FORMAT`<br></br>
+
+---
+
+> #### hoodie.bootstrap.base.path
+> Base path of the dataset that needs to be bootstrapped as a Hudi table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BOOTSTRAP_BASE_PATH`<br></br>
+
+---
+
+> #### hoodie.datasource.write.drop.partition.columns
+> When set to true, will not write the partition columns into hudi. By default, false.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: DROP_PARTITION_COLUMNS`<br></br>
+
+---
+
+> #### hoodie.database.name
+> Database name that will be used for incremental query.If different databases have the same table name during incremental query, we can set it to limit the table name under a specific database<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: DATABASE_NAME`<br></br>
+
+---
+
+> #### hoodie.timeline.layout.version
+> Version of timeline used, by the table.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TIMELINE_LAYOUT_VERSION`<br></br>
+
+---
+
+> #### hoodie.table.name
+> Table name that will be used for registering with Hive. Needs to be same across runs.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: NAME`<br></br>
+
+---
+
+### Memory Configurations {#Memory-Configurations}
+
+Controls memory usage for compaction and merges, performed internally by Hudi.
+
+`Config Class`: org.apache.hudi.config.HoodieMemoryConfig<br></br>
+> #### hoodie.memory.merge.fraction
+> This fraction is multiplied with the user memory fraction (1 - spark.memory.fraction) to get a final fraction of heap space to use during merge<br></br>
+> **Default Value**: 0.6 (Optional)<br></br>
+> `Config Param: MAX_MEMORY_FRACTION_FOR_MERGE`<br></br>
+
+---
+
+> #### hoodie.memory.dfs.buffer.max.size
+> Property to control the max memory in bytes for dfs input stream buffer size<br></br>
+> **Default Value**: 16777216 (Optional)<br></br>
+> `Config Param: MAX_DFS_STREAM_BUFFER_SIZE`<br></br>
+
+---
+
+> #### hoodie.memory.writestatus.failure.fraction
+> Property to control how what fraction of the failed record, exceptions we report back to driver. Default is 10%. If set to 100%, with lot of failures, this can cause memory pressure, cause OOMs and mask actual data errors.<br></br>
+> **Default Value**: 0.1 (Optional)<br></br>
+> `Config Param: WRITESTATUS_FAILURE_FRACTION`<br></br>
+
+---
+
+> #### hoodie.memory.compaction.fraction
+> HoodieCompactedLogScanner reads logblocks, converts records to HoodieRecords and then merges these log blocks and records. At any point, the number of entries in a log block can be less than or equal to the number of entries in the corresponding parquet file. This can lead to OOM in the Scanner. Hence, a spillable map helps alleviate the memory pressure. Use this config to set the max allowable inMemory footprint of the spillable map<br></br>
+> **Default Value**: 0.6 (Optional)<br></br>
+> `Config Param: MAX_MEMORY_FRACTION_FOR_COMPACTION`<br></br>
+
+---
+
+> #### hoodie.memory.merge.max.size
+> Maximum amount of memory used in bytes for merge operations, before spilling to local storage.<br></br>
+> **Default Value**: 1073741824 (Optional)<br></br>
+> `Config Param: MAX_MEMORY_FOR_MERGE`<br></br>
+
+---
+
+> #### hoodie.memory.spillable.map.path
+> Default file path prefix for spillable map<br></br>
+> **Default Value**: /tmp/ (Optional)<br></br>
+> `Config Param: SPILLABLE_MAP_BASE_PATH`<br></br>
+
+---
+
+> #### hoodie.memory.compaction.max.size
+> Maximum amount of memory used in bytes for compaction operations in bytes , before spilling to local storage.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: MAX_MEMORY_FOR_COMPACTION`<br></br>
+
+---
+
+### DynamoDB based Locks Configurations {#DynamoDB-based-Locks-Configurations}
+
+Configs that control DynamoDB based locking mechanisms required for concurrency control between writers to a Hudi table. Concurrency between Hudi's own table services are auto managed internally.
+
+`Config Class`: org.apache.hudi.config.DynamoDbBasedLockConfig<br></br>
+> #### hoodie.write.lock.dynamodb.billing_mode
+> For DynamoDB based lock provider, by default it is PAY_PER_REQUEST mode<br></br>
+> **Default Value**: PAY_PER_REQUEST (Optional)<br></br>
+> `Config Param: DYNAMODB_LOCK_BILLING_MODE`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.table
+> For DynamoDB based lock provider, the name of the DynamoDB table acting as lock table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: DYNAMODB_LOCK_TABLE_NAME`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.region
+> For DynamoDB based lock provider, the region used in endpoint for Amazon DynamoDB service. Would try to first get it from AWS_REGION environment variable. If not find, by default use us-east-1<br></br>
+> **Default Value**: us-east-1 (Optional)<br></br>
+> `Config Param: DYNAMODB_LOCK_REGION`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.partition_key
+> For DynamoDB based lock provider, the partition key for the DynamoDB lock table. Each Hudi dataset should has it's unique key so concurrent writers could refer to the same partition key. By default we use the Hudi table name specified to be the partition key<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: DYNAMODB_LOCK_PARTITION_KEY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.write_capacity
+> For DynamoDB based lock provider, write capacity units when using PROVISIONED billing mode<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: DYNAMODB_LOCK_WRITE_CAPACITY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.table_creation_timeout
+> For DynamoDB based lock provider, the maximum number of milliseconds to wait for creating DynamoDB table<br></br>
+> **Default Value**: 600000 (Optional)<br></br>
+> `Config Param: DYNAMODB_LOCK_TABLE_CREATION_TIMEOUT`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.read_capacity
+> For DynamoDB based lock provider, read capacity units when using PROVISIONED billing mode<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: DYNAMODB_LOCK_READ_CAPACITY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.dynamodb.endpoint_url
+> For DynamoDB based lock provider, the url endpoint used for Amazon DynamoDB service. Useful for development with a local dynamodb instance.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: DYNAMODB_ENDPOINT_URL`<br></br>
+> `Since Version: 0.10.1`<br></br>
+
+---
+
+### Storage Configs {#Storage-Configs}
+
+Configurations that control aspects around writing, sizing, reading base and log files.
+
+`Config Class`: org.apache.hudi.config.HoodieStorageConfig<br></br>
+> #### hoodie.logfile.data.block.max.size
+> LogFile Data block max size in bytes. This is the maximum size allowed for a single data block to be appended to a log file. This helps to make sure the data appended to the log file is broken up into sizable blocks to prevent from OOM errors. This size should be greater than the JVM memory.<br></br>
+> **Default Value**: 268435456 (Optional)<br></br>
+> `Config Param: LOGFILE_DATA_BLOCK_MAX_SIZE`<br></br>
+
+---
+
+> #### hoodie.parquet.outputtimestamptype
+> Sets spark.sql.parquet.outputTimestampType. Parquet timestamp type to use when Spark writes data to Parquet files.<br></br>
+> **Default Value**: TIMESTAMP_MICROS (Optional)<br></br>
+> `Config Param: PARQUET_OUTPUT_TIMESTAMP_TYPE`<br></br>
+
+---
+
+> #### hoodie.orc.stripe.size
+> Size of the memory buffer in bytes for writing<br></br>
+> **Default Value**: 67108864 (Optional)<br></br>
+> `Config Param: ORC_STRIPE_SIZE`<br></br>
+
+---
+
+> #### hoodie.orc.block.size
+> ORC block size, recommended to be aligned with the target file size.<br></br>
+> **Default Value**: 125829120 (Optional)<br></br>
+> `Config Param: ORC_BLOCK_SIZE`<br></br>
+
+---
+
+> #### hoodie.orc.compression.codec
+> Compression codec to use for ORC base files.<br></br>
+> **Default Value**: ZLIB (Optional)<br></br>
+> `Config Param: ORC_COMPRESSION_CODEC_NAME`<br></br>
+
+---
+
+> #### hoodie.parquet.max.file.size
+> Target size in bytes for parquet files produced by Hudi write phases. For DFS, this needs to be aligned with the underlying filesystem block size for optimal performance.<br></br>
+> **Default Value**: 125829120 (Optional)<br></br>
+> `Config Param: PARQUET_MAX_FILE_SIZE`<br></br>
+
+---
+
+> #### hoodie.hfile.max.file.size
+> Target file size in bytes for HFile base files.<br></br>
+> **Default Value**: 125829120 (Optional)<br></br>
+> `Config Param: HFILE_MAX_FILE_SIZE`<br></br>
+
+---
+
+> #### hoodie.parquet.writelegacyformat.enabled
+> Sets spark.sql.parquet.writeLegacyFormat. If true, data will be written in a way of Spark 1.4 and earlier. For example, decimal values will be written in Parquet's fixed-length byte array format which other systems such as Apache Hive and Apache Impala use. If false, the newer format in Parquet will be used. For example, decimals will be written in int-based format.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: PARQUET_WRITE_LEGACY_FORMAT_ENABLED`<br></br>
+
+---
+
+> #### hoodie.parquet.block.size
+> Parquet RowGroup size in bytes. It's recommended to make this large enough that scan costs can be amortized by packing enough column values into a single row group.<br></br>
+> **Default Value**: 125829120 (Optional)<br></br>
+> `Config Param: PARQUET_BLOCK_SIZE`<br></br>
+
+---
+
+> #### hoodie.logfile.max.size
+> LogFile max size in bytes. This is the maximum size allowed for a log file before it is rolled over to the next version.<br></br>
+> **Default Value**: 1073741824 (Optional)<br></br>
+> `Config Param: LOGFILE_MAX_SIZE`<br></br>
+
+---
+
+> #### hoodie.parquet.dictionary.enabled
+> Whether to use dictionary encoding<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PARQUET_DICTIONARY_ENABLED`<br></br>
+
+---
+
+> #### hoodie.hfile.block.size
+> Lower values increase the size in bytes of metadata tracked within HFile, but can offer potentially faster lookup times.<br></br>
+> **Default Value**: 1048576 (Optional)<br></br>
+> `Config Param: HFILE_BLOCK_SIZE`<br></br>
+
+---
+
+> #### hoodie.parquet.field_id.write.enabled
+> Would only be effective with Spark 3.3+. Sets spark.sql.parquet.fieldId.write.enabled. If enabled, Spark will write out parquet native field ids that are stored inside StructField's metadata as parquet.field.id to parquet files.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PARQUET_FIELD_ID_WRITE_ENABLED`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.parquet.page.size
+> Parquet page size in bytes. Page is the unit of read within a parquet file. Within a block, pages are compressed separately.<br></br>
+> **Default Value**: 1048576 (Optional)<br></br>
+> `Config Param: PARQUET_PAGE_SIZE`<br></br>
+
+---
+
+> #### hoodie.hfile.compression.algorithm
+> Compression codec to use for hfile base files.<br></br>
+> **Default Value**: GZ (Optional)<br></br>
+> `Config Param: HFILE_COMPRESSION_ALGORITHM_NAME`<br></br>
+
+---
+
+> #### hoodie.orc.max.file.size
+> Target file size in bytes for ORC base files.<br></br>
+> **Default Value**: 125829120 (Optional)<br></br>
+> `Config Param: ORC_FILE_MAX_SIZE`<br></br>
+
+---
+
+> #### hoodie.logfile.data.block.format
+> Format of the data block within delta logs. Following formats are currently supported "avro", "hfile", "parquet"<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: LOGFILE_DATA_BLOCK_FORMAT`<br></br>
+
+---
+
+> #### hoodie.logfile.to.parquet.compression.ratio
+> Expected additional compression as records move from log files to parquet. Used for merge_on_read table to send inserts into log files & control the size of compacted parquet file.<br></br>
+> **Default Value**: 0.35 (Optional)<br></br>
+> `Config Param: LOGFILE_TO_PARQUET_COMPRESSION_RATIO_FRACTION`<br></br>
+
+---
+
+> #### hoodie.parquet.compression.ratio
+> Expected compression of parquet data used by Hudi, when it tries to size new parquet files. Increase this value, if bulk_insert is producing smaller than expected sized files<br></br>
+> **Default Value**: 0.1 (Optional)<br></br>
+> `Config Param: PARQUET_COMPRESSION_RATIO_FRACTION`<br></br>
+
+---
+
+> #### hoodie.parquet.compression.codec
+> Compression Codec for parquet files<br></br>
+> **Default Value**: gzip (Optional)<br></br>
+> `Config Param: PARQUET_COMPRESSION_CODEC_NAME`<br></br>
+
+---
+
+### Archival Configs {#Archival-Configs}
+
+Configurations that control archival.
+
+`Config Class`: org.apache.hudi.config.HoodieArchivalConfig<br></br>
+> #### hoodie.archive.merge.small.file.limit.bytes
+> This config sets the archive file size limit below which an archive file becomes a candidate to be selected as such a small file.<br></br>
+> **Default Value**: 20971520 (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_SMALL_FILE_LIMIT_BYTES`<br></br>
+
+---
+
+> #### hoodie.keep.max.commits
+> Archiving service moves older entries from timeline into an archived log after each write, to keep the metadata overhead constant, even as the table size grows.This config controls the maximum number of instants to retain in the active timeline. <br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: MAX_COMMITS_TO_KEEP`<br></br>
+
+---
+
+> #### hoodie.archive.merge.enable
+> When enable, hoodie will auto merge several small archive files into larger one. It's useful when storage scheme doesn't support append operation.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.archive.automatic
+> When enabled, the archival table service is invoked immediately after each commit, to archive commits if we cross a maximum value of commits. It's recommended to enable this, to ensure number of active commits is bounded.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: AUTO_ARCHIVE`<br></br>
+
+---
+
+> #### hoodie.archive.delete.parallelism
+> Parallelism for deleting archived hoodie commits.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: DELETE_ARCHIVED_INSTANT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.archive.beyond.savepoint
+> If enabled, archival will proceed beyond savepoint, skipping savepoint commits. If disabled, archival will stop at the earliest savepoint commit.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ARCHIVE_BEYOND_SAVEPOINT`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.commits.archival.batch
+> Archiving of instants is batched in best-effort manner, to pack more instants into a single archive log. This config controls such archival batch size.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: COMMITS_ARCHIVAL_BATCH_SIZE`<br></br>
+
+---
+
+> #### hoodie.archive.async
+> Only applies when hoodie.archive.automatic is turned on. When turned on runs archiver async with writing, which can speed up overall write performance.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_ARCHIVE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.keep.min.commits
+> Similar to hoodie.keep.max.commits, but controls the minimum number ofinstants to retain in the active timeline.<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: MIN_COMMITS_TO_KEEP`<br></br>
+
+---
+
+> #### hoodie.archive.merge.files.batch.size
+> The number of small archive files to be merged at once.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: ARCHIVE_MERGE_FILES_BATCH_SIZE`<br></br>
+
+---
+
+### Metadata Configs {#Metadata-Configs}
+
+Configurations used by the Hudi Metadata Table. This table maintains the metadata about a given Hudi table (e.g file listings) to avoid overhead of accessing cloud storage, during queries.
+
+`Config Class`: org.apache.hudi.common.config.HoodieMetadataConfig<br></br>
+> #### hoodie.metadata.index.column.stats.parallelism
+> Parallelism to use, when generating column stats index.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: COLUMN_STATS_INDEX_PARALLELISM`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.compact.max.delta.commits
+> Controls how often the metadata table is compacted.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: COMPACT_NUM_DELTA_COMMITS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.assume.date.partitioning
+> Should HoodieWriteClient assume the data is partitioned by dates, i.e three levels from base path. This is a stop-gap to support tables created by versions < 0.3.1. Will be removed eventually<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASSUME_DATE_PARTITIONING`<br></br>
+> `Since Version: 0.3.0`<br></br>
+
+---
+
+> #### hoodie.metadata.metrics.enable
+> Enable publishing of metrics around metadata table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: METRICS_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.bloom.filter.file.group.count
+> Metadata bloom filter index partition file group count. This controls the size of the base and log files and read parallelism in the bloom filter index partition. The recommendation is to size the file group count such that the base files are under 1GB.<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: METADATA_INDEX_BLOOM_FILTER_FILE_GROUP_COUNT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### _hoodie.metadata.ignore.spurious.deletes
+> There are cases when extra files are requested to be deleted from metadata table which are never added before. This config determines how to handle such spurious deletes<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: IGNORE_SPURIOUS_DELETES`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.file.listing.parallelism
+> Parallelism to use, when listing the table on lake storage.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: FILE_LISTING_PARALLELISM_VALUE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.async
+> Enable asynchronous indexing of metadata table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_INDEX_ENABLE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.column.stats.column.list
+> Comma-separated list of columns for which column stats index will be built. If not set, all columns will be indexed<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: COLUMN_STATS_INDEX_FOR_COLUMNS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.enable.full.scan.log.files
+> Enable full scanning of log files while reading log records. If disabled, Hudi does look up of only interested entries.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ENABLE_FULL_SCAN_LOG_FILES`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.bloom.filter.enable
+> Enable indexing bloom filters of user data files under metadata table. When enabled, metadata table will have a partition to store the bloom filter index and will be used during the index lookups.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ENABLE_METADATA_INDEX_BLOOM_FILTER`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.clean.async
+> Enable asynchronous cleaning for metadata table<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_CLEAN_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.keep.max.commits
+> Similar to hoodie.metadata.keep.min.commits, this config controls the maximum number of instants to retain in the active timeline.<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: MAX_COMMITS_TO_KEEP`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.insert.parallelism
+> Parallelism to use when inserting to the metadata table<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: INSERT_PARALLELISM_VALUE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.dir.filter.regex
+> Directories matching this regex, will be filtered out when initializing metadata table from lake storage for the first time.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: DIR_FILTER_REGEX`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.column.stats.processing.mode.override
+> By default Column Stats Index is automatically determining whether it should be read and processed either'in-memory' (w/in executing process) or using Spark (on a cluster), based on some factors like the size of the Index and how many columns are read. This config allows to override this behavior.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: COLUMN_STATS_INDEX_PROCESSING_MODE_OVERRIDE`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.metadata.keep.min.commits
+> Archiving service moves older entries from metadata table’s timeline into an archived log after each write, to keep the overhead constant, even as the metadata table size grows. This config controls the minimum number of instants to retain in the active timeline.<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: MIN_COMMITS_TO_KEEP`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.column.stats.inMemory.projection.threshold
+> When reading Column Stats Index, if the size of the expected resulting projection is below the in-memory threshold (counted by the # of rows), it will be attempted to be loaded "in-memory" (ie not using the execution engine like Spark, Flink, etc). If the value is above the threshold execution engine will be used to compose the projection.<br></br>
+> **Default Value**: 100000 (Optional)<br></br>
+> `Config Param: COLUMN_STATS_INDEX_IN_MEMORY_PROJECTION_THRESHOLD`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.column.stats.enable
+> Enable indexing column ranges of user data files under metadata table key lookups. When enabled, metadata table will have a partition to store the column ranges and will be used for pruning files during the index lookups.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ENABLE_METADATA_INDEX_COLUMN_STATS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.bloom.filter.column.list
+> Comma-separated list of columns for which bloom filter index will be built. If not set, only record key will be indexed.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BLOOM_FILTER_INDEX_FOR_COLUMNS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.cleaner.commits.retained
+> Number of commits to retain, without cleaning, on metadata table.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: CLEANER_COMMITS_RETAINED`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.check.timeout.seconds
+> After the async indexer has finished indexing upto the base instant, it will ensure that all inflight writers reliably write index updates as well. If this timeout expires, then the indexer will abort itself safely.<br></br>
+> **Default Value**: 900 (Optional)<br></br>
+> `Config Param: METADATA_INDEX_CHECK_TIMEOUT_SECONDS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.populate.meta.fields
+> When enabled, populates all meta fields. When disabled, no meta fields are populated.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: POPULATE_META_FIELDS`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.column.stats.file.group.count
+> Metadata column stats partition file group count. This controls the size of the base and log files and read parallelism in the column stats index partition. The recommendation is to size the file group count such that the base files are under 1GB.<br></br>
+> **Default Value**: 2 (Optional)<br></br>
+> `Config Param: METADATA_INDEX_COLUMN_STATS_FILE_GROUP_COUNT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metadata.enable
+> Enable the internal metadata table which serves table metadata like level file listings<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metadata.index.bloom.filter.parallelism
+> Parallelism to use for generating bloom filter index in metadata table.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_INDEX_PARALLELISM`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+### Consistency Guard Configurations {#Consistency-Guard-Configurations}
+
+The consistency guard related config options, to help talk to eventually consistent object storage.(Tip: S3 is NOT eventually consistent anymore!)
+
+`Config Class`: org.apache.hudi.common.fs.ConsistencyGuardConfig<br></br>
+> #### hoodie.optimistic.consistency.guard.sleep_time_ms
+> Amount of time (in ms), to wait after which we assume storage is consistent.<br></br>
+> **Default Value**: 500 (Optional)<br></br>
+> `Config Param: OPTIMISTIC_CONSISTENCY_GUARD_SLEEP_TIME_MS`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.max_interval_ms
+> Maximum amount of time (in ms), to wait for consistency checking.<br></br>
+> **Default Value**: 20000 (Optional)<br></br>
+> `Config Param: MAX_CHECK_INTERVAL_MS`<br></br>
+> `Since Version: 0.5.0`<br></br>
+> `Deprecated Version: 0.7.0`<br></br>
+
+---
+
+> #### _hoodie.optimistic.consistency.guard.enable
+> Enable consistency guard, which optimistically assumes consistency is achieved after a certain time period.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: OPTIMISTIC_CONSISTENCY_GUARD_ENABLE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.enabled
+> Enabled to handle S3 eventual consistency issue. This property is no longer required since S3 is now strongly consistent. Will be removed in the future releases.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ENABLE`<br></br>
+> `Since Version: 0.5.0`<br></br>
+> `Deprecated Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.max_checks
+> Maximum number of consistency checks to perform, with exponential backoff.<br></br>
+> **Default Value**: 6 (Optional)<br></br>
+> `Config Param: MAX_CHECKS`<br></br>
+> `Since Version: 0.5.0`<br></br>
+> `Deprecated Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.initial_interval_ms
+> Amount of time (in ms) to wait, before checking for consistency after an operation on storage.<br></br>
+> **Default Value**: 400 (Optional)<br></br>
+> `Config Param: INITIAL_CHECK_INTERVAL_MS`<br></br>
+> `Since Version: 0.5.0`<br></br>
+> `Deprecated Version: 0.7.0`<br></br>
+
+---
+
+### FileSystem Guard Configurations {#FileSystem-Guard-Configurations}
+
+The filesystem retry related config options, to help deal with runtime exception like list/get/put/delete performance issues.
+
+`Config Class`: org.apache.hudi.common.fs.FileSystemRetryConfig<br></br>
+> #### hoodie.filesystem.operation.retry.max_interval_ms
+> Maximum amount of time (in ms), to wait for next retry.<br></br>
+> **Default Value**: 2000 (Optional)<br></br>
+> `Config Param: MAX_RETRY_INTERVAL_MS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.operation.retry.enable
+> Enabled to handle list/get/delete etc file system performance issue.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: FILESYSTEM_RETRY_ENABLE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.operation.retry.max_numbers
+> Maximum number of retry actions to perform, with exponential backoff.<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: MAX_RETRY_NUMBERS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.operation.retry.exceptions
+> The class name of the Exception that needs to be re-tryed, separated by commas. Default is empty which means retry all the IOException and RuntimeException from FileSystem<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: RETRY_EXCEPTIONS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.operation.retry.initial_interval_ms
+> Amount of time (in ms) to wait, before retry to do operations on storage.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: INITIAL_RETRY_INTERVAL_MS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+### Write Configurations {#Write-Configurations}
+
+Configurations that control write behavior on Hudi tables. These can be directly passed down from even higher level frameworks (e.g Spark datasources, Flink sink) and utilities (e.g DeltaStreamer).
+
+`Config Class`: org.apache.hudi.config.HoodieWriteConfig<br></br>
+> #### hoodie.combine.before.upsert
+> When upserted records share same key, controls whether they should be first combined (i.e de-duplicated) before writing to storage. This should be turned off only if you are absolutely certain that there are no duplicates incoming, otherwise it can lead to duplicate keys and violate the uniqueness guarantees.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_UPSERT`<br></br>
+
+---
+
+> #### hoodie.write.markers.type
+> Marker type to use. Two modes are supported: - DIRECT: individual marker file corresponding to each data file is directly created by the writer. - TIMELINE_SERVER_BASED: marker operations are all handled at the timeline service which serves as a proxy. New marker entries are batch processed and stored in a limited number of underlying files for efficiency. If HDFS is used or timeline server is disabled, DIRECT markers are used as fallback even if this is configure. For Spark struct [...]
+> **Default Value**: TIMELINE_SERVER_BASED (Optional)<br></br>
+> `Config Param: MARKERS_TYPE`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.max_interval_ms
+> Max time to wait between successive attempts at performing consistency checks<br></br>
+> **Default Value**: 300000 (Optional)<br></br>
+> `Config Param: MAX_CONSISTENCY_CHECK_INTERVAL_MS`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server.port
+> Port at which the timeline server listens for requests. When running embedded in each writer, it picks a free port and communicates to all the executors. This should rarely be changed.<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_PORT_NUM`<br></br>
+
+---
+
+> #### hoodie.auto.adjust.lock.configs
+> Auto adjust lock configurations when metadata table is enabled and for async table services.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: AUTO_ADJUST_LOCK_CONFIGS`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.table.services.enabled
+> Master control to disable all table services including archive, clean, compact, cluster, etc.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: TABLE_SERVICES_ENABLED`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.table.base.file.format
+> Base file format to store all the base file data.<br></br>
+> **Default Value**: PARQUET (Optional)<br></br>
+> `Config Param: BASE_FILE_FORMAT`<br></br>
+
+---
+
+> #### hoodie.avro.schema.validate
+> Validate the schema used for the write against the latest schema, for backwards compatibility.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: AVRO_SCHEMA_VALIDATE_ENABLE`<br></br>
+
+---
+
+> #### hoodie.write.buffer.limit.bytes
+> Size of in-memory buffer used for parallelizing network reads and lake storage writes.<br></br>
+> **Default Value**: 4194304 (Optional)<br></br>
+> `Config Param: WRITE_BUFFER_LIMIT_BYTES_VALUE`<br></br>
+
+---
+
+> #### hoodie.insert.shuffle.parallelism
+> Parallelism for inserting records into the table. Inserts can shuffle data before writing to tune file sizes and optimize the storage layout.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: INSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server.async
+> Controls whether or not, the requests to the timeline server are processed in asynchronous fashion, potentially improving throughput.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_USE_ASYNC_ENABLE`<br></br>
+
+---
+
+> #### hoodie.rollback.parallelism
+> Parallelism for rollback of commits. Rollbacks perform delete of files or logging delete blocks to file groups on storage in parallel.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: ROLLBACK_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.write.status.storage.level
+> Write status objects hold metadata about a write (stats, errors), that is not yet committed to storage. This controls the how that information is cached for inspection by clients. We rarely expect this to be changed.<br></br>
+> **Default Value**: MEMORY_AND_DISK_SER (Optional)<br></br>
+> `Config Param: WRITE_STATUS_STORAGE_LEVEL_VALUE`<br></br>
+
+---
+
+> #### hoodie.writestatus.class
+> Subclass of org.apache.hudi.client.WriteStatus to be used to collect information about a write. Can be overridden to collection additional metrics/statistics about the data if needed.<br></br>
+> **Default Value**: org.apache.hudi.client.WriteStatus (Optional)<br></br>
+> `Config Param: WRITE_STATUS_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.base.path
+> Base path on lake storage, under which all the table data is stored. Always prefix it explicitly with the storage scheme (e.g hdfs://, s3:// etc). Hudi stores all the main meta-data about commits, savepoints, cleaning audit logs etc in .hoodie directory under this base path directory.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BASE_PATH`<br></br>
+
+---
+
+> #### hoodie.allow.empty.commit
+> Whether to allow generation of empty commits, even if no data was written in the commit. It's useful in cases where extra metadata needs to be published regardless e.g tracking source offsets when ingesting data<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ALLOW_EMPTY_COMMIT`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.user.defined.partitioner.class
+> If specified, this class will be used to re-partition records before they are bulk inserted. This can be used to sort, pack, cluster data optimally for common query patterns. For now we support a build-in user defined bulkinsert partitioner org.apache.hudi.execution.bulkinsert.RDDCustomColumnsSortPartitioner which can does sorting based on specified column values set by hoodie.bulkinsert.user.defined.partitioner.sort.columns<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BULKINSERT_USER_DEFINED_PARTITIONER_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.table.name
+> Table name that will be used for registering with metastores like HMS. Needs to be same across runs.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TBL_NAME`<br></br>
+
+---
+
+> #### hoodie.combine.before.delete
+> During delete operations, controls whether we should combine deletes (and potentially also upserts) before writing to storage.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_DELETE`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server.threads
+> Number of threads to serve requests in the timeline server. By default, auto configured based on the number of underlying cores.<br></br>
+> **Default Value**: -1 (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_NUM_SERVER_THREADS`<br></br>
+
+---
+
+> #### hoodie.fileid.prefix.provider.class
+> File Id Prefix provider class, that implements `org.apache.hudi.fileid.FileIdPrefixProvider`<br></br>
+> **Default Value**: org.apache.hudi.table.RandomFileIdPrefixProvider (Optional)<br></br>
+> `Config Param: FILEID_PREFIX_PROVIDER_CLASS`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.fail.on.timeline.archiving
+> Timeline archiving removes older instants from the timeline, after each write operation, to minimize metadata overhead. Controls whether or not, the write should be failed as well, if such archiving fails.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: FAIL_ON_TIMELINE_ARCHIVING_ENABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.class
+> Key generator class, that implements `org.apache.hudi.keygen.KeyGenerator` extract a key out of incoming records.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KEYGENERATOR_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.combine.before.insert
+> When inserted records share same key, controls whether they should be first combined (i.e de-duplicated) before writing to storage.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: COMBINE_BEFORE_INSERT`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server.gzip
+> Controls whether gzip compression is used, for large responses from the timeline server, to improve latency.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_COMPRESS_ENABLE`<br></br>
+
+---
+
+> #### hoodie.markers.timeline_server_based.batch.interval_ms
+> The batch interval in milliseconds for marker creation batch processing<br></br>
+> **Default Value**: 50 (Optional)<br></br>
+> `Config Param: MARKERS_TIMELINE_SERVER_BASED_BATCH_INTERVAL_MS`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.skip.default.partition.validation
+> When table is upgraded from pre 0.12 to 0.12, we check for "default" partition and fail if found one. Users are expected to rewrite the data in those partitions. Enabling this config will bypass this validation<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SKIP_DEFAULT_PARTITION_VALIDATION`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.markers.timeline_server_based.batch.num_threads
+> Number of threads to use for batch processing marker creation requests at the timeline server<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: MARKERS_TIMELINE_SERVER_BASED_BATCH_NUM_THREADS`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### _.hoodie.allow.multi.write.on.same.instant
+> <br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ALLOW_MULTI_WRITE_ON_SAME_INSTANT_ENABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.payload.class
+> Payload class used. Override this, if you like to roll your own merge logic, when upserting/inserting. This will render any value set for PRECOMBINE_FIELD_OPT_VAL in-effective<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: WRITE_PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.shuffle.parallelism
+> For large initial imports using bulk_insert operation, controls the parallelism to use for sort modes or custom partitioning donebefore writing records to the table.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: BULKINSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.delete.shuffle.parallelism
+> Parallelism used for “delete” operation. Delete operations also performs shuffles, similar to upsert operation.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: DELETE_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.consistency.check.max_checks
+> Maximum number of checks, for consistency of written data.<br></br>
+> **Default Value**: 7 (Optional)<br></br>
+> `Config Param: MAX_CONSISTENCY_CHECKS`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.type
+> Easily configure one the built-in key generators, instead of specifying the key generator class.Currently supports SIMPLE, COMPLEX, TIMESTAMP, CUSTOM, NON_PARTITION, GLOBAL_DELETE<br></br>
+> **Default Value**: SIMPLE (Optional)<br></br>
+> `Config Param: KEYGENERATOR_TYPE`<br></br>
+
+---
+
+> #### hoodie.merge.allow.duplicate.on.inserts
+> When enabled, we allow duplicate keys even if inserts are routed to merge with an existing file (for ensuring file sizing). This is only relevant for insert operation, since upsert, delete operations will ensure unique key constraints are maintained.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: MERGE_ALLOW_DUPLICATE_ON_INSERTS_ENABLE`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server.reuse.enabled
+> Controls whether the timeline server instance should be cached and reused across the JVM (across task lifecycles)to avoid startup costs. This should rarely be changed.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_REUSE_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.write.precombine.field
+> Field used in preCombining before actual write. When two records have the same key value, we will pick the one with the largest value for the precombine field, determined by Object.compareTo(..)<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: PRECOMBINE_FIELD_NAME`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.sort.mode
+> Sorting modes to use for sorting records for bulk insert. This is use when user hoodie.bulkinsert.user.defined.partitioner.classis not configured. Available values are - GLOBAL_SORT: this ensures best file sizes, with lowest memory overhead at cost of sorting. PARTITION_SORT: Strikes a balance by only sorting within a partition, still keeping the memory overhead of writing lowest and best effort file sizing. NONE: No sorting. Fastest and matches `spark.write.parquet()` in terms of numb [...]
+> **Default Value**: NONE (Optional)<br></br>
+> `Config Param: BULK_INSERT_SORT_MODE`<br></br>
+
+---
+
+> #### hoodie.avro.schema
+> Schema string representing the current write schema of the table. Hudi passes this to implementations of HoodieRecordPayload to convert incoming records to avro. This is also used as the write schema evolving records during an update.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: AVRO_SCHEMA_STRING`<br></br>
+
+---
+
+> #### hoodie.auto.commit
+> Controls whether a write operation should auto commit. This can be turned off to perform inspection of the uncommitted write before deciding to commit.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: AUTO_COMMIT_ENABLE`<br></br>
+
+---
+
+> #### hoodie.embed.timeline.server
+> When true, spins up an instance of the timeline server (meta server that serves cached file listings, statistics),running on each writer's driver process, accepting requests during the write from executors.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: EMBEDDED_TIMELINE_SERVER_ENABLE`<br></br>
+
+---
+
+> #### hoodie.timeline.layout.version
+> Controls the layout of the timeline. Version 0 relied on renames, Version 1 (default) models the timeline as an immutable log relying only on atomic writes for object storage.<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: TIMELINE_LAYOUT_VERSION_NUM`<br></br>
+> `Since Version: 0.5.1`<br></br>
+
+---
+
+> #### hoodie.schema.cache.enable
+> cache query internalSchemas in driver/executor side<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ENABLE_INTERNAL_SCHEMA_CACHE`<br></br>
+
+---
+
+> #### hoodie.upsert.shuffle.parallelism
+> Parallelism to use for upsert operation on the table. Upserts can shuffle data to perform index lookups, file sizing, bin packing records optimallyinto file groups.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: UPSERT_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.write.schema
+> The specified write schema. In most case, we do not need set this parameter, but for the case the write schema is not equal to the specified table schema, we can specify the write schema by this parameter. Used by MergeIntoHoodieTableCommand<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: WRITE_SCHEMA`<br></br>
+
+---
+
+> #### hoodie.rollback.using.markers
+> Enables a more efficient mechanism for rollbacks based on the marker files generated during the writes. Turned on by default.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ROLLBACK_USING_MARKERS_ENABLE`<br></br>
+
+---
+
+> #### hoodie.merge.data.validation.enabled
+> When enabled, data validation checks are performed during merges to ensure expected number of records after merge operation.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: MERGE_DATA_VALIDATION_CHECK_ENABLE`<br></br>
+
+---
+
+> #### hoodie.internal.schema
+> Schema string representing the latest schema of the table. Hudi passes this to implementations of evolution of schema<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: INTERNAL_SCHEMA_STRING`<br></br>
+
+---
+
+> #### hoodie.client.heartbeat.tolerable.misses
+> Number of heartbeat misses, before a writer is deemed not alive and all pending writes are aborted.<br></br>
+> **Default Value**: 2 (Optional)<br></br>
+> `Config Param: CLIENT_HEARTBEAT_NUM_TOLERABLE_MISSES`<br></br>
+
+---
+
+> #### hoodie.write.concurrency.mode
+> Enable different concurrency modes. Options are SINGLE_WRITER: Only one active writer to the table. Maximizes throughputOPTIMISTIC_CONCURRENCY_CONTROL: Multiple writers can operate on the table and exactly one of them succeed if a conflict (writes affect the same file group) is detected.<br></br>
+> **Default Value**: SINGLE_WRITER (Optional)<br></br>
+> `Config Param: WRITE_CONCURRENCY_MODE`<br></br>
+
+---
+
+> #### hoodie.markers.delete.parallelism
+> Determines the parallelism for deleting marker files, which are used to track all files (valid or invalid/partial) written during a write operation. Increase this value if delays are observed, with large batch writes.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: MARKERS_DELETE_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.release.resource.on.completion.enable
+> Control to enable release all persist rdds when the spark job finish.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: RELEASE_RESOURCE_ENABLE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.bulkinsert.user.defined.partitioner.sort.columns
+> Columns to sort the data by when use org.apache.hudi.execution.bulkinsert.RDDCustomColumnsSortPartitioner as user defined partitioner during bulk_insert. For example 'column1,column2'<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BULKINSERT_USER_DEFINED_PARTITIONER_SORT_COLUMNS`<br></br>
+
+---
+
+> #### hoodie.finalize.write.parallelism
+> Parallelism for the write finalization internal operation, which involves removing any partially written files from lake storage, before committing the write. Reduce this value, if the high number of tasks incur delays for smaller tables or low latency writes.<br></br>
+> **Default Value**: 200 (Optional)<br></br>
+> `Config Param: FINALIZE_WRITE_PARALLELISM_VALUE`<br></br>
+
+---
+
+> #### hoodie.merge.small.file.group.candidates.limit
+> Limits number of file groups, whose base file satisfies small-file limit, to consider for appending records during upsert operation. Only applicable to MOR tables<br></br>
+> **Default Value**: 1 (Optional)<br></br>
+> `Config Param: MERGE_SMALL_FILE_GROUP_CANDIDATES_LIMIT`<br></br>
+
+---
+
+> #### hoodie.client.heartbeat.interval_in_ms
+> Writers perform heartbeats to indicate liveness. Controls how often (in ms), such heartbeats are registered to lake storage.<br></br>
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: CLIENT_HEARTBEAT_INTERVAL_IN_MS`<br></br>
+
+---
+
+> #### hoodie.allow.operation.metadata.field
+> Whether to include '_hoodie_operation' in the metadata fields. Once enabled, all the changes of a record are persisted to the delta log directly without merge<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ALLOW_OPERATION_METADATA_FIELD`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.consistency.check.initial_interval_ms
+> Initial time between successive attempts to ensure written data's metadata is consistent on storage. Grows with exponential backoff after the initial value.<br></br>
+> **Default Value**: 2000 (Optional)<br></br>
+> `Config Param: INITIAL_CONSISTENCY_CHECK_INTERVAL_MS`<br></br>
+
+---
+
+> #### hoodie.avro.schema.external.transformation
+> When enabled, records in older schema are rewritten into newer schema during upsert,delete and background compaction,clustering operations.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: AVRO_EXTERNAL_SCHEMA_TRANSFORMATION_ENABLE`<br></br>
+
+---
+
+### Key Generator Options {#Key-Generator-Options}
+
+Hudi maintains keys (record key + partition path) for uniquely identifying a particular record. This config allows developers to setup the Key generator class that will extract these out of incoming records.
+
+`Config Class`: org.apache.hudi.keygen.constant.KeyGeneratorOptions<br></br>
+> #### hoodie.datasource.write.partitionpath.urlencode
+> Should we url encode the partition path value, before creating the folder structure.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: URL_ENCODE_PARTITIONING`<br></br>
+
+---
+
+> #### hoodie.datasource.write.hive_style_partitioning
+> Flag to indicate whether to use Hive style partitioning.
+If set true, the names of partition folders follow <partition_column_name>=<partition_value> format.
+By default false (the names of partition folders are only partition values)<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: HIVE_STYLE_PARTITIONING_ENABLE`<br></br>
+
+---
+
+> #### hoodie.datasource.write.keygenerator.consistent.logical.timestamp.enabled
+> When set to true, consistent value will be generated for a logical timestamp type column, like timestamp-millis and timestamp-micros, irrespective of whether row-writer is enabled. Disabled by default so as not to break the pipeline that deploy either fully row-writer path or non row-writer path. For example, if it is kept disabled then record key of timestamp type with value `2016-12-29 09:54:00` will be written as timestamp `2016-12-29 09:54:00.0` in row-writer path, while it will be [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: KEYGENERATOR_CONSISTENT_LOGICAL_TIMESTAMP_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.write.partitionpath.field
+> Partition path field. Value to be used at the partitionPath component of HoodieKey. Actual value ontained by invoking .toString()<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITIONPATH_FIELD_NAME`<br></br>
+
+---
+
+> #### hoodie.datasource.write.recordkey.field
+> Record key field. Value to be used as the `recordKey` component of `HoodieKey`.
+Actual value will be obtained by invoking .toString() on the field value. Nested fields can be specified using
+the dot notation eg: `a.b.c`<br></br>
+> **Default Value**: uuid (Optional)<br></br>
+> `Config Param: RECORDKEY_FIELD_NAME`<br></br>
+
+---
+
+### HBase Index Configs {#HBase-Index-Configs}
+
+Configurations that control indexing behavior (when HBase based indexing is enabled), which tags incoming records as either inserts or updates to older records.
+
+`Config Class`: org.apache.hudi.config.HoodieHBaseIndexConfig<br></br>
+> #### hoodie.index.hbase.zkport
+> Only applies if index type is HBASE. HBase ZK Quorum port to connect to<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZKPORT`<br></br>
+
+---
+
+> #### hoodie.index.hbase.put.batch.size.autocompute
+> Property to set to enable auto computation of put batch size<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: PUT_BATCH_SIZE_AUTO_COMPUTE`<br></br>
+
+---
+
+> #### hoodie.index.hbase.bucket.number
+> Only applicable when using RebalancedSparkHoodieHBaseIndex, same as hbase regions count can get the best performance<br></br>
+> **Default Value**: 8 (Optional)<br></br>
+> `Config Param: BUCKET_NUMBER`<br></br>
+
+---
+
+> #### hoodie.index.hbase.rollback.sync
+> When set to true, the rollback method will delete the last failed task index. The default value is false. Because deleting the index will add extra load on the Hbase cluster for each rollback<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ROLLBACK_SYNC_ENABLE`<br></br>
+
+---
+
+> #### hoodie.index.hbase.max.qps.per.region.server
+> Property to set maximum QPS allowed per Region Server. This should be same across various jobs. This is intended to
+ limit the aggregate QPS generated across various jobs to an Hbase Region Server. It is recommended to set this
+ value based on global indexing throughput needs and most importantly, how much the HBase installation in use is
+ able to tolerate without Region Servers going down.<br></br>
+> **Default Value**: 1000 (Optional)<br></br>
+> `Config Param: MAX_QPS_PER_REGION_SERVER`<br></br>
+
+---
+
+> #### hoodie.index.hbase.min.qps.fraction
+> Minimum for HBASE_QPS_FRACTION_PROP to stabilize skewed write workloads<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: MIN_QPS_FRACTION`<br></br>
+
+---
+
+> #### hoodie.index.hbase.zk.connection_timeout_ms
+> Timeout to use for establishing connection with zookeeper, from HBase client.<br></br>
+> **Default Value**: 15000 (Optional)<br></br>
+> `Config Param: ZK_CONNECTION_TIMEOUT_MS`<br></br>
+
+---
+
+> #### hoodie.index.hbase.table
+> Only applies if index type is HBASE. HBase Table name to use as the index. Hudi stores the row_key and [partition_path, fileID, commitTime] mapping in the table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TABLENAME`<br></br>
+
+---
+
+> #### hoodie.index.hbase.zknode.path
+> Only applies if index type is HBASE. This is the root znode that will contain all the znodes created/used by HBase<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZK_NODE_PATH`<br></br>
+
+---
+
+> #### hoodie.index.hbase.kerberos.user.keytab
+> File name of the kerberos keytab file for connecting to the hbase cluster.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KERBEROS_USER_KEYTAB`<br></br>
+
+---
+
+> #### hoodie.index.hbase.zkquorum
+> Only applies if index type is HBASE. HBase ZK Quorum url to connect to<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZKQUORUM`<br></br>
+
+---
+
+> #### hoodie.index.hbase.qps.fraction
+> Property to set the fraction of the global share of QPS that should be allocated to this job. Let's say there are 3 jobs which have input size in terms of number of rows required for HbaseIndexing as x, 2x, 3x respectively. Then this fraction for the jobs would be (0.17) 1/6, 0.33 (2/6) and 0.5 (3/6) respectively. Default is 50%, which means a total of 2 jobs can run using HbaseIndex without overwhelming Region Servers.<br></br>
+> **Default Value**: 0.5 (Optional)<br></br>
+> `Config Param: QPS_FRACTION`<br></br>
+
+---
+
+> #### hoodie.index.hbase.zk.session_timeout_ms
+> Session timeout value to use for Zookeeper failure detection, for the HBase client.Lower this value, if you want to fail faster.<br></br>
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: ZK_SESSION_TIMEOUT_MS`<br></br>
+
+---
+
+> #### hoodie.index.hbase.put.batch.size
+> Controls the batch size for performing puts against HBase. Batching improves throughput, by saving round trips.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: PUT_BATCH_SIZE`<br></br>
+
+---
+
+> #### hoodie.hbase.index.update.partition.path
+> Only applies if index type is HBASE. When an already existing record is upserted to a new partition compared to whats in storage, this config when set, will delete old record in old partition and will insert it as new record in new partition.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: UPDATE_PARTITION_PATH_ENABLE`<br></br>
+
+---
+
+> #### hoodie.index.hbase.security.authentication
+> Property to decide if the hbase cluster secure authentication is enabled or not. Possible values are 'simple' (no authentication), and 'kerberos'.<br></br>
+> **Default Value**: simple (Optional)<br></br>
+> `Config Param: SECURITY_AUTHENTICATION`<br></br>
+
+---
+
+> #### hoodie.index.hbase.qps.allocator.class
+> Property to set which implementation of HBase QPS resource allocator to be used, whichcontrols the batching rate dynamically.<br></br>
+> **Default Value**: org.apache.hudi.index.hbase.DefaultHBaseQPSResourceAllocator (Optional)<br></br>
+> `Config Param: QPS_ALLOCATOR_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.index.hbase.get.batch.size
+> Controls the batch size for performing gets against HBase. Batching improves throughput, by saving round trips.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: GET_BATCH_SIZE`<br></br>
+
+---
+
+> #### hoodie.index.hbase.zkpath.qps_root
+> chroot in zookeeper, to use for all qps allocation co-ordination.<br></br>
+> **Default Value**: /QPS_ROOT (Optional)<br></br>
+> `Config Param: ZKPATH_QPS_ROOT`<br></br>
+
+---
+
+> #### hoodie.index.hbase.max.qps.fraction
+> Maximum for HBASE_QPS_FRACTION_PROP to stabilize skewed write workloads<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: MAX_QPS_FRACTION`<br></br>
+
+---
+
+> #### hoodie.index.hbase.regionserver.kerberos.principal
+> The value of hbase.regionserver.kerberos.principal in hbase cluster.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: REGIONSERVER_PRINCIPAL`<br></br>
+
+---
+
+> #### hoodie.index.hbase.dynamic_qps
+> Property to decide if HBASE_QPS_FRACTION_PROP is dynamically calculated based on write volume.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: COMPUTE_QPS_DYNAMICALLY`<br></br>
+
+---
+
+> #### hoodie.index.hbase.master.kerberos.principal
+> The value of hbase.master.kerberos.principal in hbase cluster.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: MASTER_PRINCIPAL`<br></br>
+
+---
+
+> #### hoodie.index.hbase.kerberos.user.principal
+> The kerberos principal name for connecting to the hbase cluster.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KERBEROS_USER_PRINCIPAL`<br></br>
+
+---
+
+> #### hoodie.index.hbase.desired_puts_time_in_secs
+> <br></br>
+> **Default Value**: 600 (Optional)<br></br>
+> `Config Param: DESIRED_PUTS_TIME_IN_SECONDS`<br></br>
+
+---
+
+> #### hoodie.index.hbase.sleep.ms.for.put.batch
+> <br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: SLEEP_MS_FOR_PUT_BATCH`<br></br>
+
+---
+
+> #### hoodie.index.hbase.sleep.ms.for.get.batch
+> <br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: SLEEP_MS_FOR_GET_BATCH`<br></br>
+
+---
+
+### Write commit pulsar callback configs {#Write-commit-pulsar-callback-configs}
+
+Controls notifications sent to pulsar, on events happening to a hudi table.
+
+`Config Class`: org.apache.hudi.utilities.callback.pulsar.HoodieWriteCommitPulsarCallbackConfig<br></br>
+> #### hoodie.write.commit.callback.pulsar.operation-timeout
+> Duration of waiting for completing an operation.<br></br>
+> **Default Value**: 30s (Optional)<br></br>
+> `Config Param: OPERATION_TIMEOUT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.topic
+> pulsar topic name to publish timeline activity into.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TOPIC`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.producer.block-if-queue-full
+> When the queue is full, the method is blocked instead of an exception is thrown.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PRODUCER_BLOCK_QUEUE_FULL`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.producer.send-timeout
+> The timeout in each sending to pulsar.<br></br>
+> **Default Value**: 30s (Optional)<br></br>
+> `Config Param: PRODUCER_SEND_TIMEOUT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.broker.service.url
+> Server's url of pulsar cluster, to be used for publishing commit metadata.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BROKER_SERVICE_URL`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.keepalive-interval
+> Duration of keeping alive interval for each client broker connection.<br></br>
+> **Default Value**: 30s (Optional)<br></br>
+> `Config Param: KEEPALIVE_INTERVAL`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.producer.pending-total-size
+> The maximum number of pending messages across partitions.<br></br>
+> **Default Value**: 50000 (Optional)<br></br>
+> `Config Param: PRODUCER_PENDING_SIZE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.request-timeout
+> Duration of waiting for completing a request.<br></br>
+> **Default Value**: 60s (Optional)<br></br>
+> `Config Param: REQUEST_TIMEOUT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.producer.pending-queue-size
+> The maximum size of a queue holding pending messages.<br></br>
+> **Default Value**: 1000 (Optional)<br></br>
+> `Config Param: PRODUCER_PENDING_QUEUE_SIZE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.producer.route-mode
+> Message routing logic for producers on partitioned topics.<br></br>
+> **Default Value**: RoundRobinPartition (Optional)<br></br>
+> `Config Param: PRODUCER_ROUTE_MODE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.pulsar.connection-timeout
+> Duration of waiting for a connection to a broker to be established.<br></br>
+> **Default Value**: 10s (Optional)<br></br>
+> `Config Param: CONNECTION_TIMEOUT`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+### Write commit Kafka callback configs {#Write-commit-Kafka-callback-configs}
+
+Controls notifications sent to Kafka, on events happening to a hudi table.
+
+`Config Class`: org.apache.hudi.utilities.callback.kafka.HoodieWriteCommitKafkaCallbackConfig<br></br>
+> #### hoodie.write.commit.callback.kafka.topic
+> Kafka topic name to publish timeline activity into.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: TOPIC`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.kafka.partition
+> It may be desirable to serialize all changes into a single Kafka partition for providing strict ordering. By default, Kafka messages are keyed by table name, which guarantees ordering at the table level, but not globally (or when new partitions are added)<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.kafka.retries
+> Times to retry the produce. 3 by default<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: RETRIES`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.kafka.acks
+> kafka acks level, all by default to ensure strong durability.<br></br>
+> **Default Value**: all (Optional)<br></br>
+> `Config Param: ACKS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.write.commit.callback.kafka.bootstrap.servers
+> Bootstrap servers of kafka cluster, to be used for publishing commit metadata.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BOOTSTRAP_SERVERS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+### Locks Configurations {#Locks-Configurations}
+
+Configs that control locking mechanisms required for concurrency control between writers to a Hudi table. Concurrency between Hudi's own table services are auto managed internally.
+
+`Config Class`: org.apache.hudi.config.HoodieLockConfig<br></br>
+> #### hoodie.write.lock.zookeeper.base_path
+> The base path on Zookeeper under which to create lock related ZNodes. This should be same for all concurrent writers to the same table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZK_BASE_PATH`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.zookeeper.lock_key
+> Key name under base_path at which to create a ZNode and acquire lock. Final path on zk will look like base_path/lock_key. If this parameter is not set, we would set it as the table name<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZK_LOCK_KEY`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.client.num_retries
+> Maximum number of times to retry to acquire lock additionally from the lock manager.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_CLIENT_NUM_RETRIES`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.wait_time_ms_between_retry
+> Initial amount of time to wait between retries to acquire locks, subsequent retries will exponentially backoff.<br></br>
+> **Default Value**: 1000 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_RETRY_WAIT_TIME_IN_MILLIS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.num_retries
+> Maximum number of times to retry lock acquire, at each lock provider<br></br>
+> **Default Value**: 15 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_NUM_RETRIES`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.wait_time_ms
+> Timeout in ms, to wait on an individual lock acquire() call, at the lock provider.<br></br>
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_WAIT_TIMEOUT_MS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.zookeeper.connection_timeout_ms
+> Timeout in ms, to wait for establishing connection with Zookeeper.<br></br>
+> **Default Value**: 15000 (Optional)<br></br>
+> `Config Param: ZK_CONNECTION_TIMEOUT_MS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.zookeeper.port
+> Zookeeper port to connect to.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZK_PORT`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.hivemetastore.table
+> For Hive based lock provider, the Hive table to acquire lock against<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_TABLE_NAME`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.zookeeper.url
+> Zookeeper URL to connect to.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: ZK_CONNECT_URL`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.filesystem.expire
+> For DFS based lock providers, expire time in minutes, must be a nonnegative number, default means no expire<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: FILESYSTEM_LOCK_EXPIRE`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.filesystem.path
+> For DFS based lock providers, path to store the locks under. use Table's meta path as default<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: FILESYSTEM_LOCK_PATH`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.provider
+> Lock provider class name, user can provide their own implementation of LockProvider which should be subclass of org.apache.hudi.common.lock.LockProvider<br></br>
+> **Default Value**: org.apache.hudi.client.transaction.lock.ZookeeperBasedLockProvider (Optional)<br></br>
+> `Config Param: LOCK_PROVIDER_CLASS_NAME`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.zookeeper.session_timeout_ms
+> Timeout in ms, to wait after losing connection to ZooKeeper, before the session is expired<br></br>
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: ZK_SESSION_TIMEOUT_MS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.conflict.resolution.strategy
+> Lock provider class name, this should be subclass of org.apache.hudi.client.transaction.ConflictResolutionStrategy<br></br>
+> **Default Value**: org.apache.hudi.client.transaction.SimpleConcurrentFileWritesConflictResolutionStrategy (Optional)<br></br>
+> `Config Param: WRITE_CONFLICT_RESOLUTION_STRATEGY_CLASS_NAME`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.hivemetastore.database
+> For Hive based lock provider, the Hive database to acquire lock against<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_DATABASE_NAME`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.hivemetastore.uris
+> For Hive based lock provider, the Hive metastore URI to acquire locks against.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HIVE_METASTORE_URI`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.max_wait_time_ms_between_retry
+> Maximum amount of time to wait between retries by lock provider client. This bounds the maximum delay from the exponential backoff. Currently used by ZK based lock provider only.<br></br>
+> **Default Value**: 5000 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_RETRY_MAX_WAIT_TIME_IN_MILLIS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+> #### hoodie.write.lock.client.wait_time_ms_between_retry
+> Amount of time to wait between retries on the lock provider by the lock manager<br></br>
+> **Default Value**: 10000 (Optional)<br></br>
+> `Config Param: LOCK_ACQUIRE_CLIENT_RETRY_WAIT_TIME_IN_MILLIS`<br></br>
+> `Since Version: 0.8.0`<br></br>
+
+---
+
+### Compaction Configs {#Compaction-Configs}
+
+Configurations that control compaction (merging of log files onto a new base files).
+
+`Config Class`: org.apache.hudi.config.HoodieCompactionConfig<br></br>
+> #### hoodie.compaction.lazy.block.read
+> When merging the delta log files, this config helps to choose whether the log blocks should be read lazily or not. Choose true to use lazy block reading (low memory usage, but incurs seeks to each block header) or false for immediate block read (higher memory usage)<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COMPACTION_LAZY_BLOCK_READ_ENABLE`<br></br>
+
+---
+
+> #### hoodie.parquet.small.file.limit
+> During upsert operation, we opportunistically expand existing small files on storage, instead of writing new files, to keep number of files to an optimum. This config sets the file size limit below which a file on storage becomes a candidate to be selected as such a `small file`. By default, treat any file <= 100MB as a small file. Also note that if this set <= 0, will not try to get small files and directly write new files<br></br>
+> **Default Value**: 104857600 (Optional)<br></br>
+> `Config Param: PARQUET_SMALL_FILE_LIMIT`<br></br>
+
+---
+
+> #### hoodie.compaction.strategy
+> Compaction strategy decides which file groups are picked up for compaction during each compaction run. By default. Hudi picks the log file with most accumulated unmerged data<br></br>
+> **Default Value**: org.apache.hudi.table.action.compact.strategy.LogFileSizeBasedCompactionStrategy (Optional)<br></br>
+> `Config Param: COMPACTION_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.record.size.estimate
+> The average record size. If not explicitly specified, hudi will compute the record size estimate compute dynamically based on commit metadata. This is critical in computing the insert parallelism and bin-packing inserts into small files.<br></br>
+> **Default Value**: 1024 (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_RECORD_SIZE_ESTIMATE`<br></br>
+
+---
+
+> #### hoodie.compact.inline.max.delta.seconds
+> Number of elapsed seconds after the last compaction, before scheduling a new one.<br></br>
+> **Default Value**: 3600 (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_TIME_DELTA_SECONDS`<br></br>
+
+---
+
+> #### hoodie.compaction.target.io
+> Amount of MBs to spend during compaction run for the LogFileSizeBasedCompactionStrategy. This value helps bound ingestion latency while compaction is run inline mode.<br></br>
+> **Default Value**: 512000 (Optional)<br></br>
+> `Config Param: TARGET_IO_PER_COMPACTION_IN_MB`<br></br>
+
+---
+
+> #### hoodie.compaction.logfile.size.threshold
+> Only if the log file size is greater than the threshold in bytes, the file group will be compacted.<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: COMPACTION_LOG_FILE_SIZE_THRESHOLD`<br></br>
+
+---
+
+> #### hoodie.compaction.preserve.commit.metadata
+> When rewriting data, preserves existing hoodie_commit_time<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PRESERVE_COMMIT_METADATA`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.insert.auto.split
+> Config to control whether we control insert split sizes automatically based on average record sizes. It's recommended to keep this turned on, since hand tuning is otherwise extremely cumbersome.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_AUTO_SPLIT_INSERTS`<br></br>
+
+---
+
+> #### hoodie.compact.inline.max.delta.commits
+> Number of delta commits after the last compaction, before scheduling of a new compaction is attempted.<br></br>
+> **Default Value**: 5 (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_NUM_DELTA_COMMITS`<br></br>
+
+---
+
+> #### hoodie.record.size.estimation.threshold
+> We use the previous commits' metadata to calculate the estimated record size and use it to bin pack records into partitions. If the previous commit is too small to make an accurate estimation, Hudi will search commits in the reverse order, until we find a commit that has totalBytesWritten larger than (PARQUET_SMALL_FILE_LIMIT_BYTES * this_threshold)<br></br>
+> **Default Value**: 1.0 (Optional)<br></br>
+> `Config Param: RECORD_SIZE_ESTIMATION_THRESHOLD`<br></br>
+
+---
+
+> #### hoodie.compact.inline.trigger.strategy
+> Controls how compaction scheduling is triggered, by time or num delta commits or combination of both. Valid options: NUM_COMMITS,NUM_COMMITS_AFTER_LAST_REQUEST,TIME_ELAPSED,NUM_AND_TIME,NUM_OR_TIME<br></br>
+> **Default Value**: NUM_COMMITS (Optional)<br></br>
+> `Config Param: INLINE_COMPACT_TRIGGER_STRATEGY`<br></br>
+
+---
+
+> #### hoodie.compaction.reverse.log.read
+> HoodieLogFormatReader reads a logfile in the forward direction starting from pos=0 to pos=file_length. If this config is set to true, the reader reads the logfile in reverse direction, from pos=file_length to pos=0<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: COMPACTION_REVERSE_LOG_READ_ENABLE`<br></br>
+
+---
+
+> #### hoodie.copyonwrite.insert.split.size
+> Number of inserts assigned for each partition/bucket for writing. We based the default on writing out 100MB files, with at least 1kb records (100K records per file), and over provision to 500K. As long as auto-tuning of splits is turned on, this only affects the first write, where there is no history to learn record sizes from.<br></br>
+> **Default Value**: 500000 (Optional)<br></br>
+> `Config Param: COPY_ON_WRITE_INSERT_SPLIT_SIZE`<br></br>
+
+---
+
+> #### hoodie.compact.schedule.inline
+> When set to true, compaction service will be attempted for inline scheduling after each write. Users have to ensure they have a separate job to run async compaction(execution) for the one scheduled by this writer. Users can choose to set both `hoodie.compact.inline` and `hoodie.compact.schedule.inline` to false and have both scheduling and execution triggered by any async process. But if `hoodie.compact.inline` is set to false, and `hoodie.compact.schedule.inline` is set to true, regul [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SCHEDULE_INLINE_COMPACT`<br></br>
+
+---
+
+> #### hoodie.compaction.daybased.target.partitions
+> Used by org.apache.hudi.io.compact.strategy.DayBasedCompactionStrategy to denote the number of latest partitions to compact during a compaction run.<br></br>
+> **Default Value**: 10 (Optional)<br></br>
+> `Config Param: TARGET_PARTITIONS_PER_DAYBASED_COMPACTION`<br></br>
+
+---
+
+> #### hoodie.compact.inline
+> When set to true, compaction service is triggered after each write. While being simpler operationally, this adds extra latency on the write path.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INLINE_COMPACT`<br></br>
+
+---
+
+### File System View Storage Configurations {#File-System-View-Storage-Configurations}
+
+Configurations that control how file metadata is stored by Hudi, for transaction processing and queries.
+
+`Config Class`: org.apache.hudi.common.table.view.FileSystemViewStorageConfig<br></br>
+> #### hoodie.filesystem.view.remote.retry.exceptions
+> The class name of the Exception that needs to be re-tryed, separated by commas. Default is empty which means retry all the IOException and RuntimeException from Remote Request.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: RETRY_EXCEPTIONS`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.retry.initial_interval_ms
+> Amount of time (in ms) to wait, before retry to do operations on storage.<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: REMOTE_INITIAL_RETRY_INTERVAL_MS`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.replaced.mem.fraction
+> Fraction of the file system view memory, to be used for holding replace commit related metadata.<br></br>
+> **Default Value**: 0.01 (Optional)<br></br>
+> `Config Param: SPILLABLE_REPLACED_MEM_FRACTION`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.dir
+> Path on local storage to use, when file system view is held in a spillable map.<br></br>
+> **Default Value**: /tmp/ (Optional)<br></br>
+> `Config Param: SPILLABLE_DIR`<br></br>
+
+---
+
+> #### hoodie.filesystem.remote.backup.view.enable
+> Config to control whether backup needs to be configured if clients were not able to reach timeline service.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: REMOTE_BACKUP_VIEW_ENABLE`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.compaction.mem.fraction
+> Fraction of the file system view memory, to be used for holding compaction related metadata.<br></br>
+> **Default Value**: 0.8 (Optional)<br></br>
+> `Config Param: SPILLABLE_COMPACTION_MEM_FRACTION`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.retry.max_numbers
+> Maximum number of retry for API requests against a remote file system view. e.g timeline server.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: REMOTE_MAX_RETRY_NUMBERS`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.mem
+> Amount of memory to be used in bytes for holding file system view, before spilling to disk.<br></br>
+> **Default Value**: 104857600 (Optional)<br></br>
+> `Config Param: SPILLABLE_MEMORY`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.secondary.type
+> Specifies the secondary form of storage for file system view, if the primary (e.g timeline server) is unavailable.<br></br>
+> **Default Value**: MEMORY (Optional)<br></br>
+> `Config Param: SECONDARY_VIEW_TYPE`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.retry.enable
+> Whether to enable API request retry for remote file system view.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: REMOTE_RETRY_ENABLE`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.host
+> We expect this to be rarely hand configured.<br></br>
+> **Default Value**: localhost (Optional)<br></br>
+> `Config Param: REMOTE_HOST_NAME`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.retry.max_interval_ms
+> Maximum amount of time (in ms), to wait for next retry.<br></br>
+> **Default Value**: 2000 (Optional)<br></br>
+> `Config Param: REMOTE_MAX_RETRY_INTERVAL_MS`<br></br>
+> `Since Version: 0.12.0`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.type
+> File system view provides APIs for viewing the files on the underlying lake storage, as file groups and file slices. This config controls how such a view is held. Options include MEMORY,SPILLABLE_DISK,EMBEDDED_KV_STORE,REMOTE_ONLY,REMOTE_FIRST which provide different trade offs for memory usage and API request performance.<br></br>
+> **Default Value**: MEMORY (Optional)<br></br>
+> `Config Param: VIEW_TYPE`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.timeout.secs
+> Timeout in seconds, to wait for API requests against a remote file system view. e.g timeline server.<br></br>
+> **Default Value**: 300 (Optional)<br></br>
+> `Config Param: REMOTE_TIMEOUT_SECS`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.remote.port
+> Port to serve file system view queries, when remote. We expect this to be rarely hand configured.<br></br>
+> **Default Value**: 26754 (Optional)<br></br>
+> `Config Param: REMOTE_PORT_NUM`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.bootstrap.base.file.mem.fraction
+> Fraction of the file system view memory, to be used for holding mapping to bootstrap base files.<br></br>
+> **Default Value**: 0.05 (Optional)<br></br>
+> `Config Param: BOOTSTRAP_BASE_FILE_MEM_FRACTION`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.spillable.clustering.mem.fraction
+> Fraction of the file system view memory, to be used for holding clustering related metadata.<br></br>
+> **Default Value**: 0.01 (Optional)<br></br>
+> `Config Param: SPILLABLE_CLUSTERING_MEM_FRACTION`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.rocksdb.base.path
+> Path on local storage to use, when storing file system view in embedded kv store/rocksdb.<br></br>
+> **Default Value**: /tmp/hoodie_timeline_rocksdb (Optional)<br></br>
+> `Config Param: ROCKSDB_BASE_PATH`<br></br>
+
+---
+
+> #### hoodie.filesystem.view.incr.timeline.sync.enable
+> Controls whether or not, the file system view is incrementally updated as new actions are performed on the timeline.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INCREMENTAL_TIMELINE_SYNC_ENABLE`<br></br>
+
+---
+
+### Index Configs {#Index-Configs}
+
+Configurations that control indexing behavior, which tags incoming records as either inserts or updates to older records.
+
+`Config Class`: org.apache.hudi.config.HoodieIndexConfig<br></br>
+> #### hoodie.index.bloom.num_entries
+> Only applies if index type is BLOOM. This is the number of entries to be stored in the bloom filter. The rationale for the default: Assume the maxParquetFileSize is 128MB and averageRecordSize is 1kb and hence we approx a total of 130K records in a file. The default (60000) is roughly half of this approximation. Warning: Setting this very low, will generate a lot of false positives and index lookup will have to scan a lot more files than it has to and setting this to a very high number [...]
+> **Default Value**: 60000 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_NUM_ENTRIES_VALUE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.keys.per.bucket
+> Only applies if bloomIndexBucketizedChecking is enabled and index type is bloom. This configuration controls the “bucket” size which tracks the number of record-key checks made against a single file and is the unit of work allocated to each partition performing bloom filter lookup. A higher value would amortize the fixed cost of reading a bloom filter to memory.<br></br>
+> **Default Value**: 10000000 (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_KEYS_PER_BUCKET`<br></br>
+
+---
+
+> #### hoodie.simple.index.input.storage.level
+> Only applies when #simpleIndexUseCaching is set. Determine what level of persistence is used to cache input RDDs. Refer to org.apache.spark.storage.StorageLevel for different values<br></br>
+> **Default Value**: MEMORY_AND_DISK_SER (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_INPUT_STORAGE_LEVEL_VALUE`<br></br>
+
+---
+
+> #### hoodie.simple.index.parallelism
+> Only applies if index type is SIMPLE. This is the amount of parallelism for index lookup, which involves a Spark Shuffle<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.global.simple.index.parallelism
+> Only applies if index type is GLOBAL_SIMPLE. This is the amount of parallelism for index lookup, which involves a Spark Shuffle<br></br>
+> **Default Value**: 100 (Optional)<br></br>
+> `Config Param: GLOBAL_SIMPLE_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.simple.index.update.partition.path
+> Similar to Key: 'hoodie.bloom.index.update.partition.path' , default: true description: Only applies if index type is GLOBAL_BLOOM. When set to true, an update including the partition path of a record that already exists will result in inserting the incoming record into the new partition and deleting the original record in the old partition. When set to false, the original record will only be updated in the old partition since version: version is not defined deprecated after: version i [...]
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_UPDATE_PARTITION_PATH_ENABLE`<br></br>
+
+---
+
+> #### hoodie.bucket.index.num.buckets
+> Only applies if index type is BUCKET. Determine the number of buckets in the hudi table, and each partition is divided to N buckets.<br></br>
+> **Default Value**: 256 (Optional)<br></br>
+> `Config Param: BUCKET_INDEX_NUM_BUCKETS`<br></br>
+
+---
+
+> #### hoodie.bucket.index.hash.field
+> Index key. It is used to index the record and find its file group. If not set, use record key field as default<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BUCKET_INDEX_HASH_FIELD`<br></br>
+
+---
+
+> #### hoodie.bloom.index.use.metadata
+> Only applies if index type is BLOOM.When true, the index lookup uses bloom filters and column stats from metadata table when available to speed up the process.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_USE_METADATA`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.bloom.index.bucketized.checking
+> Only applies if index type is BLOOM. When true, bucketized bloom filtering is enabled. This reduces skew seen in sort based bloom index lookup<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_BUCKETIZED_CHECKING`<br></br>
+
+---
+
+> #### hoodie.index.type
+> Type of index to use. Default is SIMPLE on Spark engine and INMEMORY on Flink and Java engines. Possible options are [BLOOM | GLOBAL_BLOOM |SIMPLE | GLOBAL_SIMPLE | INMEMORY | HBASE | BUCKET]. Bloom filters removes the dependency on a external system and is stored in the footer of the Parquet Data Files<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: INDEX_TYPE`<br></br>
+
+---
+
+> #### hoodie.index.bloom.fpp
+> Only applies if index type is BLOOM. Error rate allowed given the number of entries. This is used to calculate how many bits should be assigned for the bloom filter and the number of hash functions. This is usually set very low (default: 0.000000001), we like to tradeoff disk space for lower false positives. If the number of entries added to bloom filter exceeds the configured value (hoodie.index.bloom.num_entries), then this fpp may not be honored.<br></br>
+> **Default Value**: 0.000000001 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_FPP_VALUE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.update.partition.path
+> Only applies if index type is GLOBAL_BLOOM. When set to true, an update including the partition path of a record that already exists will result in inserting the incoming record into the new partition and deleting the original record in the old partition. When set to false, the original record will only be updated in the old partition<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_UPDATE_PARTITION_PATH_ENABLE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.use.caching
+> Only applies if index type is BLOOM.When true, the input RDD will cached to speed up index lookup by reducing IO for computing parallelism or affected partitions<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_USE_CACHING`<br></br>
+
+---
+
+> #### hoodie.bloom.index.input.storage.level
+> Only applies when #bloomIndexUseCaching is set. Determine what level of persistence is used to cache input RDDs. Refer to org.apache.spark.storage.StorageLevel for different values<br></br>
+> **Default Value**: MEMORY_AND_DISK_SER (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_INPUT_STORAGE_LEVEL_VALUE`<br></br>
+
+---
+
+> #### hoodie.bloom.index.use.treebased.filter
+> Only applies if index type is BLOOM. When true, interval tree based file pruning optimization is enabled. This mode speeds-up file-pruning based on key ranges when compared with the brute-force mode<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_TREE_BASED_FILTER`<br></br>
+
+---
+
+> #### hoodie.bloom.index.parallelism
+> Only applies if index type is BLOOM. This is the amount of parallelism for index lookup, which involves a shuffle. By default, this is auto computed based on input workload characteristics.<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_PARALLELISM`<br></br>
+
+---
+
+> #### hoodie.index.bucket.engine
+> Type of bucket index engine to use. Default is SIMPLE bucket index, with fixed number of bucket.Possible options are [SIMPLE | CONSISTENT_HASHING].Consistent hashing supports dynamic resizing of the number of bucket, solving potential data skew and file size issues of the SIMPLE hashing engine.<br></br>
+> **Default Value**: SIMPLE (Optional)<br></br>
+> `Config Param: BUCKET_INDEX_ENGINE_TYPE`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.bloom.index.filter.dynamic.max.entries
+> The threshold for the maximum number of keys to record in a dynamic Bloom filter row. Only applies if filter type is BloomFilterTypeCode.DYNAMIC_V0.<br></br>
+> **Default Value**: 100000 (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_FILTER_DYNAMIC_MAX_ENTRIES`<br></br>
+
+---
+
+> #### hoodie.simple.index.use.caching
+> Only applies if index type is SIMPLE. When true, the incoming writes will cached to speed up index lookup by reducing IO for computing parallelism or affected partitions<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: SIMPLE_INDEX_USE_CACHING`<br></br>
+
+---
+
+> #### hoodie.bloom.index.prune.by.ranges
+> Only applies if index type is BLOOM. When true, range information from files to leveraged speed up index lookups. Particularly helpful, if the key has a monotonously increasing prefix, such as timestamp. If the record key is completely random, it is better to turn this off, since range pruning will only add extra overhead to the index lookup.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: BLOOM_INDEX_PRUNE_BY_RANGES`<br></br>
+
+---
+
+> #### hoodie.bloom.index.filter.type
+> Filter type used. Default is BloomFilterTypeCode.DYNAMIC_V0. Available values are [BloomFilterTypeCode.SIMPLE , BloomFilterTypeCode.DYNAMIC_V0]. Dynamic bloom filters auto size themselves based on number of keys.<br></br>
+> **Default Value**: DYNAMIC_V0 (Optional)<br></br>
+> `Config Param: BLOOM_FILTER_TYPE`<br></br>
+
+---
+
+> #### hoodie.index.class
+> Full path of user-defined index class and must be a subclass of HoodieIndex class. It will take precedence over the hoodie.index.type configuration if specified<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: INDEX_CLASS_NAME`<br></br>
+
+---
+
+### Clustering Configs {#Clustering-Configs}
+
+Configurations that control the clustering table service in hudi, which optimizes the storage layout for better query performance by sorting and sizing data files.
+
+`Config Class`: org.apache.hudi.config.HoodieClusteringConfig<br></br>
+> #### hoodie.clustering.plan.strategy.cluster.end.partition
+> End partition used to filter partition (inclusive), only effective when the filter mode 'hoodie.clustering.plan.partition.filter.mode' is SELECTED_PARTITIONS<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_FILTER_END_PARTITION`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.rollback.pending.replacecommit.on.conflict
+> If updates are allowed to file groups pending clustering, then set this config to rollback failed or pending clustering instants. Pending clustering will be rolled back ONLY IF there is conflict between incoming upsert and filegroup to be clustered. Please exercise caution while setting this config, especially when clustering is done very frequently. This could lead to race condition in rare scenarios, for example, when the clustering completes after instants are fetched but before rol [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ROLLBACK_PENDING_CLUSTERING_ON_CONFLICT`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.clustering.async.max.commits
+> Config to control frequency of async clustering<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: ASYNC_CLUSTERING_MAX_COMMITS`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.clustering.inline.max.commits
+> Config to control frequency of clustering planning<br></br>
+> **Default Value**: 4 (Optional)<br></br>
+> `Config Param: INLINE_CLUSTERING_MAX_COMMITS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.layout.optimize.enable
+> This setting has no effect. Please refer to clustering configuration, as well as LAYOUT_OPTIMIZE_STRATEGY config to enable advanced record layout optimization strategies<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: LAYOUT_OPTIMIZE_ENABLE`<br></br>
+> `Since Version: 0.10.0`<br></br>
+> `Deprecated Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.target.file.max.bytes
+> Each group can produce 'N' (CLUSTERING_MAX_GROUP_SIZE/CLUSTERING_TARGET_FILE_SIZE) output file groups<br></br>
+> **Default Value**: 1073741824 (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_TARGET_FILE_MAX_BYTES`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.daybased.skipfromlatest.partitions
+> Number of partitions to skip from latest when choosing partitions to create ClusteringPlan<br></br>
+> **Default Value**: 0 (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_SKIP_PARTITIONS_FROM_LATEST`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.clustering.execution.strategy.class
+> Config to provide a strategy class (subclass of RunClusteringStrategy) to define how the clustering plan is executed. By default, we sort the file groups in th plan by the specified columns, while meeting the configured target file sizes.<br></br>
+> **Default Value**: org.apache.hudi.client.clustering.run.strategy.SparkSortAndSizeExecutionStrategy (Optional)<br></br>
+> `Config Param: EXECUTION_STRATEGY_CLASS_NAME`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.async.enabled
+> Enable running of clustering service, asynchronously as inserts happen on the table.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: ASYNC_CLUSTERING_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.class
+> Config to provide a strategy class (subclass of ClusteringPlanStrategy) to create clustering plan i.e select what file groups are being clustered. Default strategy, looks at the clustering small file size limit (determined by hoodie.clustering.plan.strategy.small.file.limit) to pick the small file slices within partitions for clustering.<br></br>
+> **Default Value**: org.apache.hudi.client.clustering.plan.strategy.SparkSizeBasedClusteringPlanStrategy (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_CLASS_NAME`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.layout.optimize.build.curve.sample.size
+> Determines target sample size used by the Boundary-based Interleaved Index method of building space-filling curve. Larger sample size entails better layout optimization outcomes, at the expense of higher memory footprint.<br></br>
+> **Default Value**: 200000 (Optional)<br></br>
+> `Config Param: LAYOUT_OPTIMIZE_BUILD_CURVE_SAMPLE_SIZE`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.partition.selected
+> Partitions to run clustering<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_SELECTED`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.updates.strategy
+> Determines how to handle updates, deletes to file groups that are under clustering. Default strategy just rejects the update<br></br>
+> **Default Value**: org.apache.hudi.client.clustering.update.strategy.SparkRejectUpdateStrategy (Optional)<br></br>
+> `Config Param: UPDATES_STRATEGY`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.layout.optimize.strategy
+> Determines ordering strategy used in records layout optimization. Currently supported strategies are "linear", "z-order" and "hilbert" values are supported.<br></br>
+> **Default Value**: linear (Optional)<br></br>
+> `Config Param: LAYOUT_OPTIMIZE_STRATEGY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.clustering.inline
+> Turn on inline clustering - clustering will be run after each write operation is complete<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: INLINE_CLUSTERING`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.cluster.begin.partition
+> Begin partition used to filter partition (inclusive), only effective when the filter mode 'hoodie.clustering.plan.partition.filter.mode' is SELECTED_PARTITIONS<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_FILTER_BEGIN_PARTITION`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.sort.columns
+> Columns to sort the data by when clustering<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PLAN_STRATEGY_SORT_COLUMNS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.preserve.commit.metadata
+> When rewriting data, preserves existing hoodie_commit_time<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PRESERVE_COMMIT_METADATA`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.max.num.groups
+> Maximum number of groups to create as part of ClusteringPlan. Increasing groups will increase parallelism<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_MAX_GROUPS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.partition.filter.mode
+> Partition filter mode used in the creation of clustering plan. Available values are - NONE: do not filter table partition and thus the clustering plan will include all partitions that have clustering candidate.RECENT_DAYS: keep a continuous range of partitions, worked together with configs 'hoodie.clustering.plan.strategy.daybased.lookback.partitions' and 'hoodie.clustering.plan.strategy.daybased.skipfromlatest.partitions.SELECTED_PARTITIONS: keep partitions that are in the specified r [...]
+> **Default Value**: NONE (Optional)<br></br>
+> `Config Param: PLAN_PARTITION_FILTER_MODE_NAME`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.schedule.inline
+> When set to true, clustering service will be attempted for inline scheduling after each write. Users have to ensure they have a separate job to run async clustering(execution) for the one scheduled by this writer. Users can choose to set both `hoodie.clustering.inline` and `hoodie.clustering.schedule.inline` to false and have both scheduling and execution triggered by any async process, on which case `hoodie.clustering.async.enabled` is expected to be set to true. But if `hoodie.cluste [...]
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SCHEDULE_INLINE_CLUSTERING`<br></br>
+
+---
+
+> #### hoodie.layout.optimize.data.skipping.enable
+> Enable data skipping by collecting statistics once layout optimization is complete.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: LAYOUT_OPTIMIZE_DATA_SKIPPING_ENABLE`<br></br>
+> `Since Version: 0.10.0`<br></br>
+> `Deprecated Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.max.bytes.per.group
+> Each clustering operation can create multiple output file groups. Total amount of data processed by clustering operation is defined by below two properties (CLUSTERING_MAX_BYTES_PER_GROUP * CLUSTERING_MAX_NUM_GROUPS). Max amount of data to be included in one group<br></br>
+> **Default Value**: 2147483648 (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_MAX_BYTES_PER_OUTPUT_FILEGROUP`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.small.file.limit
+> Files smaller than the size in bytes specified here are candidates for clustering<br></br>
+> **Default Value**: 314572800 (Optional)<br></br>
+> `Config Param: PLAN_STRATEGY_SMALL_FILE_LIMIT`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.layout.optimize.curve.build.method
+> Controls how data is sampled to build the space-filling curves. Two methods: "direct", "sample". The direct method is faster than the sampling, however sample method would produce a better data layout.<br></br>
+> **Default Value**: direct (Optional)<br></br>
+> `Config Param: LAYOUT_OPTIMIZE_SPATIAL_CURVE_BUILD_METHOD`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.partition.regex.pattern
+> Filter clustering partitions that matched regex pattern<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: PARTITION_REGEX_PATTERN`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.clustering.plan.strategy.daybased.lookback.partitions
+> Number of partitions to list to create ClusteringPlan<br></br>
+> **Default Value**: 2 (Optional)<br></br>
+> `Config Param: DAYBASED_LOOKBACK_PARTITIONS`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+### Common Configurations {#Common-Configurations}
+
+The following set of configurations are common across Hudi.
+
+`Config Class`: org.apache.hudi.common.config.HoodieCommonConfig<br></br>
+> #### hoodie.common.diskmap.compression.enabled
+> Turn on compression for BITCASK disk map used by the External Spillable Map<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: DISK_MAP_BITCASK_COMPRESSION_ENABLED`<br></br>
+
+---
+
+> #### hoodie.datasource.write.reconcile.schema
+> When a new batch of write has records with old schema, but latest table schema got evolved, this config will upgrade the records to leverage latest table schema(default values will be injected to missing fields). If not, the write batch would fail.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: RECONCILE_SCHEMA`<br></br>
+
+---
+
+> #### hoodie.common.spillable.diskmap.type
+> When handling input data that cannot be held in memory, to merge with a file on storage, a spillable diskmap is employed. By default, we use a persistent hashmap based loosely on bitcask, that offers O(1) inserts, lookups. Change this to `ROCKS_DB` to prefer using rocksDB, for handling the spill.<br></br>
+> **Default Value**: BITCASK (Optional)<br></br>
+> `Config Param: SPILLABLE_DISK_MAP_TYPE`<br></br>
+
+---
+
+> #### hoodie.schema.on.read.enable
+> Enables support for Schema Evolution feature<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: SCHEMA_EVOLUTION_ENABLE`<br></br>
+
+---
+
+### Bootstrap Configs {#Bootstrap-Configs}
+
+Configurations that control how you want to bootstrap your existing tables for the first time into hudi. The bootstrap operation can flexibly avoid copying data over before you can use Hudi and support running the existing writers and new hudi writers in parallel, to validate the migration.
+
+`Config Class`: org.apache.hudi.config.HoodieBootstrapConfig<br></br>
+> #### hoodie.bootstrap.partitionpath.translator.class
+> Translates the partition paths from the bootstrapped data into how is laid out as a Hudi table.<br></br>
+> **Default Value**: org.apache.hudi.client.bootstrap.translator.IdentityBootstrapPartitionPathTranslator (Optional)<br></br>
+> `Config Param: PARTITION_PATH_TRANSLATOR_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.full.input.provider
+> Class to use for reading the bootstrap dataset partitions/files, for Bootstrap mode FULL_RECORD<br></br>
+> **Default Value**: org.apache.hudi.bootstrap.SparkParquetBootstrapDataProvider (Optional)<br></br>
+> `Config Param: FULL_BOOTSTRAP_INPUT_PROVIDER_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.keygen.type
+> Type of build-in key generator, currently support SIMPLE, COMPLEX, TIMESTAMP, CUSTOM, NON_PARTITION, GLOBAL_DELETE<br></br>
+> **Default Value**: SIMPLE (Optional)<br></br>
+> `Config Param: KEYGEN_TYPE`<br></br>
+> `Since Version: 0.9.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.keygen.class
+> Key generator implementation to be used for generating keys from the bootstrapped dataset<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: KEYGEN_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.parallelism
+> Parallelism value to be used to bootstrap data into hudi<br></br>
+> **Default Value**: 1500 (Optional)<br></br>
+> `Config Param: PARALLELISM_VALUE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.base.path
+> Base path of the dataset that needs to be bootstrapped as a Hudi table<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: BASE_PATH`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.mode.selector.regex
+> Matches each bootstrap dataset partition against this regex and applies the mode below to it.<br></br>
+> **Default Value**: .* (Optional)<br></br>
+> `Config Param: PARTITION_SELECTOR_REGEX_PATTERN`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.index.class
+> Implementation to use, for mapping a skeleton base file to a boostrap base file.<br></br>
+> **Default Value**: org.apache.hudi.common.bootstrap.index.HFileBootstrapIndex (Optional)<br></br>
+> `Config Param: INDEX_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.mode.selector.regex.mode
+> Bootstrap mode to apply for partition paths, that match regex above. METADATA_ONLY will generate just skeleton base files with keys/footers, avoiding full cost of rewriting the dataset. FULL_RECORD will perform a full copy/rewrite of the data as a Hudi table.<br></br>
+> **Default Value**: METADATA_ONLY (Optional)<br></br>
+> `Config Param: PARTITION_SELECTOR_REGEX_MODE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.bootstrap.mode.selector
+> Selects the mode in which each file/partition in the bootstrapped dataset gets bootstrapped<br></br>
+> **Default Value**: org.apache.hudi.client.bootstrap.selector.MetadataOnlyBootstrapModeSelector (Optional)<br></br>
+> `Config Param: MODE_SELECTOR_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+## Metrics Configs {#METRICS}
+These set of configs are used to enable monitoring and reporting of keyHudi stats and metrics.
+
+### Metrics Configurations for Datadog reporter {#Metrics-Configurations-for-Datadog-reporter}
+
+Enables reporting on Hudi metrics using the Datadog reporter type. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsDatadogConfig<br></br>
+> #### hoodie.metrics.datadog.api.timeout.seconds
+> Datadog API timeout in seconds. Default to 3.<br></br>
+> **Default Value**: 3 (Optional)<br></br>
+> `Config Param: API_TIMEOUT_IN_SECONDS`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.metric.prefix
+> Datadog metric prefix to be prepended to each metric name with a dot as delimiter. For example, if it is set to foo, foo. will be prepended.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: METRIC_PREFIX_VALUE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.api.site
+> Datadog API site: EU or US<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: API_SITE_VALUE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.api.key.skip.validation
+> Before sending metrics via Datadog API, whether to skip validating Datadog API key or not. Default to false.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: API_KEY_SKIP_VALIDATION`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.metric.host
+> Datadog metric host to be sent along with metrics data.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: METRIC_HOST_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.report.period.seconds
+> Datadog reporting period in seconds. Default to 30.<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: REPORT_PERIOD_IN_SECONDS`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.api.key
+> Datadog API key<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: API_KEY`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.api.key.supplier
+> Datadog API key supplier to supply the API key at runtime. This will take effect if hoodie.metrics.datadog.api.key is not set.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: API_KEY_SUPPLIER`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.datadog.metric.tags
+> Datadog metric tags (comma-delimited) to be sent along with metrics data.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: METRIC_TAG_VALUES`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+### Metrics Configurations for Amazon CloudWatch {#Metrics-Configurations-for-Amazon-CloudWatch}
+
+Enables reporting on Hudi metrics using Amazon CloudWatch. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsCloudWatchConfig<br></br>
+> #### hoodie.metrics.cloudwatch.report.period.seconds
+> Reporting interval in seconds<br></br>
+> **Default Value**: 60 (Optional)<br></br>
+> `Config Param: REPORT_PERIOD_SECONDS`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metrics.cloudwatch.namespace
+> Namespace of reporter<br></br>
+> **Default Value**: Hudi (Optional)<br></br>
+> `Config Param: METRIC_NAMESPACE`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metrics.cloudwatch.metric.prefix
+> Metric prefix of reporter<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: METRIC_PREFIX`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metrics.cloudwatch.maxDatumsPerRequest
+> Max number of Datums per request<br></br>
+> **Default Value**: 20 (Optional)<br></br>
+> `Config Param: MAX_DATUMS_PER_REQUEST`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+### Metrics Configurations {#Metrics-Configurations}
+
+Enables reporting on Hudi metrics. Hudi publishes metrics on every commit, clean, rollback etc. The following sections list the supported reporters.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsConfig<br></br>
+> #### hoodie.metrics.executor.enable
+> <br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: EXECUTOR_METRICS_ENABLE`<br></br>
+> `Since Version: 0.7.0`<br></br>
+
+---
+
+> #### hoodie.metrics.reporter.metricsname.prefix
+> The prefix given to the metrics names.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: METRICS_REPORTER_PREFIX`<br></br>
+> `Since Version: 0.11.0`<br></br>
+
+---
+
+> #### hoodie.metrics.reporter.type
+> Type of metrics reporter.<br></br>
+> **Default Value**: GRAPHITE (Optional)<br></br>
+> `Config Param: METRICS_REPORTER_TYPE_VALUE`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+> #### hoodie.metrics.reporter.class
+> <br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: METRICS_REPORTER_CLASS_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.on
+> Turn on/off metrics reporting. off by default.<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: TURN_METRICS_ON`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+### Metrics Configurations for Jmx {#Metrics-Configurations-for-Jmx}
+
+Enables reporting on Hudi metrics using Jmx. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsJmxConfig<br></br>
+> #### hoodie.metrics.jmx.host
+> Jmx host to connect to<br></br>
+> **Default Value**: localhost (Optional)<br></br>
+> `Config Param: JMX_HOST_NAME`<br></br>
+> `Since Version: 0.5.1`<br></br>
+
+---
+
+> #### hoodie.metrics.jmx.port
+> Jmx port to connect to<br></br>
+> **Default Value**: 9889 (Optional)<br></br>
+> `Config Param: JMX_PORT_NUM`<br></br>
+> `Since Version: 0.5.1`<br></br>
+
+---
+
+### Metrics Configurations for Prometheus {#Metrics-Configurations-for-Prometheus}
+
+Enables reporting on Hudi metrics using Prometheus. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsPrometheusConfig<br></br>
+> #### hoodie.metrics.pushgateway.random.job.name.suffix
+> Whether the pushgateway name need a random suffix , default true.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_RANDOM_JOBNAME_SUFFIX`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.pushgateway.port
+> Port for the push gateway.<br></br>
+> **Default Value**: 9091 (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_PORT_NUM`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.pushgateway.delete.on.shutdown
+> Delete the pushgateway info or not when job shutdown, true by default.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_DELETE_ON_SHUTDOWN_ENABLE`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.prometheus.port
+> Port for prometheus server.<br></br>
+> **Default Value**: 9090 (Optional)<br></br>
+> `Config Param: PROMETHEUS_PORT_NUM`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.pushgateway.job.name
+> Name of the push gateway job.<br></br>
+> **Default Value**: (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_JOBNAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.pushgateway.report.period.seconds
+> Reporting interval in seconds.<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_REPORT_PERIOD_IN_SECONDS`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+> #### hoodie.metrics.pushgateway.host
+> Hostname of the prometheus push gateway.<br></br>
+> **Default Value**: localhost (Optional)<br></br>
+> `Config Param: PUSHGATEWAY_HOST_NAME`<br></br>
+> `Since Version: 0.6.0`<br></br>
+
+---
+
+### Metrics Configurations for Graphite {#Metrics-Configurations-for-Graphite}
+
+Enables reporting on Hudi metrics using Graphite. Hudi publishes metrics on every commit, clean, rollback etc.
+
+`Config Class`: org.apache.hudi.config.metrics.HoodieMetricsGraphiteConfig<br></br>
+> #### hoodie.metrics.graphite.port
+> Graphite port to connect to.<br></br>
+> **Default Value**: 4756 (Optional)<br></br>
+> `Config Param: GRAPHITE_SERVER_PORT_NUM`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+> #### hoodie.metrics.graphite.report.period.seconds
+> Graphite reporting period in seconds. Default to 30.<br></br>
+> **Default Value**: 30 (Optional)<br></br>
+> `Config Param: GRAPHITE_REPORT_PERIOD_IN_SECONDS`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.metrics.graphite.host
+> Graphite host to connect to.<br></br>
+> **Default Value**: localhost (Optional)<br></br>
+> `Config Param: GRAPHITE_SERVER_HOST_NAME`<br></br>
+> `Since Version: 0.5.0`<br></br>
+
+---
+
+> #### hoodie.metrics.graphite.metric.prefix
+> Standard prefix applied to all metrics. This helps to add datacenter, environment information for e.g<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: GRAPHITE_METRIC_PREFIX_VALUE`<br></br>
+> `Since Version: 0.5.1`<br></br>
+
+---
+
+## Record Payload Config {#RECORD_PAYLOAD}
+This is the lowest level of customization offered by Hudi. Record payloads define how to produce new values to upsert based on incoming new record and stored old record. Hudi provides default implementations such as OverwriteWithLatestAvroPayload which simply update table with the latest/last-written record. This can be overridden to a custom class extending HoodieRecordPayload class, on both datasource and WriteClient levels.
+
+### Payload Configurations {#Payload-Configurations}
+
+Payload related configs, that can be leveraged to control merges based on specific business fields in the data.
+
+`Config Class`: org.apache.hudi.config.HoodiePayloadConfig<br></br>
+> #### hoodie.compaction.payload.class
+> This needs to be same as class used during insert/upserts. Just like writing, compaction also uses the record payload class to merge records in the log against each other, merge again with the base file and produce the final record to be written after compaction.<br></br>
+> **Default Value**: org.apache.hudi.common.model.OverwriteWithLatestAvroPayload (Optional)<br></br>
+> `Config Param: PAYLOAD_CLASS_NAME`<br></br>
+
+---
+
+> #### hoodie.payload.event.time.field
+> Table column/field name to derive timestamp associated with the records. This canbe useful for e.g, determining the freshness of the table.<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: EVENT_TIME_FIELD`<br></br>
+
+---
+
+> #### hoodie.payload.ordering.field
+> Table column/field name to order records that have the same key, before merging and writing to storage.<br></br>
+> **Default Value**: ts (Optional)<br></br>
+> `Config Param: ORDERING_FIELD`<br></br>
+
+---
+
+## Kafka Connect Configs {#KAFKA_CONNECT}
+These set of configs are used for Kafka Connect Sink Connector for writing Hudi Tables
+
+### Kafka Sink Connect Configurations {#Kafka-Sink-Connect-Configurations}
+
+Configurations for Kafka Connect Sink Connector for Hudi.
+
+`Config Class`: org.apache.hudi.connect.writers.KafkaConnectConfigs<br></br>
+> #### hoodie.kafka.coordinator.write.timeout.secs
+> The timeout after sending an END_COMMIT until when the coordinator will wait for the write statuses from all the partitionsto ignore the current commit and start a new commit.<br></br>
+> **Default Value**: 300 (Optional)<br></br>
+> `Config Param: COORDINATOR_WRITE_TIMEOUT_SECS`<br></br>
+
+---
+
+> #### hoodie.meta.sync.classes
+> Meta sync client tool, using comma to separate multi tools<br></br>
+> **Default Value**: org.apache.hudi.hive.HiveSyncTool (Optional)<br></br>
+> `Config Param: META_SYNC_CLASSES`<br></br>
+
+---
+
+> #### hoodie.kafka.allow.commit.on.errors
+> Commit even when some records failed to be written<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ALLOW_COMMIT_ON_ERRORS`<br></br>
+
+---
+
+> #### hadoop.home
+> The Hadoop home directory.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HADOOP_HOME`<br></br>
+
+---
+
+> #### hoodie.meta.sync.enable
+> Enable Meta Sync such as Hive<br></br>
+> **Default Value**: false (Optional)<br></br>
+> `Config Param: META_SYNC_ENABLE`<br></br>
+
+---
+
+> #### hoodie.kafka.commit.interval.secs
+> The interval at which Hudi will commit the records written to the files, making them consumable on the read-side.<br></br>
+> **Default Value**: 60 (Optional)<br></br>
+> `Config Param: COMMIT_INTERVAL_SECS`<br></br>
+
+---
+
+> #### hoodie.kafka.control.topic
+> Kafka topic name used by the Hudi Sink Connector for sending and receiving control messages. Not used for data records.<br></br>
+> **Default Value**: hudi-control-topic (Optional)<br></br>
+> `Config Param: CONTROL_TOPIC_NAME`<br></br>
+
+---
+
+> #### bootstrap.servers
+> The bootstrap servers for the Kafka Cluster.<br></br>
+> **Default Value**: localhost:9092 (Optional)<br></br>
+> `Config Param: KAFKA_BOOTSTRAP_SERVERS`<br></br>
+
+---
+
+> #### hoodie.schemaprovider.class
+> subclass of org.apache.hudi.schema.SchemaProvider to attach schemas to input & target table data, built in options: org.apache.hudi.schema.FilebasedSchemaProvider.<br></br>
+> **Default Value**: org.apache.hudi.schema.FilebasedSchemaProvider (Optional)<br></br>
+> `Config Param: SCHEMA_PROVIDER_CLASS`<br></br>
+
+---
+
+> #### hadoop.conf.dir
+> The Hadoop configuration directory.<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: HADOOP_CONF_DIR`<br></br>
+
+---
+
+> #### hoodie.kafka.compaction.async.enable
+> Controls whether async compaction should be turned on for MOR table writing.<br></br>
+> **Default Value**: true (Optional)<br></br>
+> `Config Param: ASYNC_COMPACT_ENABLE`<br></br>
+
+---
+
+## Amazon Web Services Configs {#AWS}
+Please fill in the description for Config Group Name: Amazon Web Services Configs
+
+### Amazon Web Services Configs {#Amazon-Web-Services-Configs}
+
+Amazon Web Services configurations to access resources like Amazon DynamoDB (for locks), Amazon CloudWatch (metrics).
+
+`Config Class`: org.apache.hudi.config.HoodieAWSConfig<br></br>
+> #### hoodie.aws.session.token
+> AWS session token<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: AWS_SESSION_TOKEN`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.aws.access.key
+> AWS access key id<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: AWS_ACCESS_KEY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
+> #### hoodie.aws.secret.key
+> AWS secret key<br></br>
+> **Default Value**: N/A (Required)<br></br>
+> `Config Param: AWS_SECRET_KEY`<br></br>
+> `Since Version: 0.10.0`<br></br>
+
+---
+
diff --git a/website/versioned_docs/version-0.12.1/cos_hoodie.md b/website/versioned_docs/version-0.12.1/cos_hoodie.md
new file mode 100644
index 0000000000..dfde6e8cff
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/cos_hoodie.md
@@ -0,0 +1,71 @@
+---
+title: Tencent Cloud
+keywords: [ hudi, hive, tencent, cos, spark, presto]
+summary: In this page, we go over how to configure Hudi with COS filesystem.
+last_modified_at: 2020-04-21T11:38:24-10:00
+---
+In this page, we explain how to get your Hudi spark job to store into Tencent Cloud COS.
+
+## Tencent Cloud COS configs
+
+There are two configurations required for Hudi-COS compatibility:
+
+- Adding Tencent Cloud COS Credentials for Hudi
+- Adding required Jars to classpath
+
+### Tencent Cloud COS Credentials
+
+Add the required configs in your core-site.xml from where Hudi can fetch them. Replace the `fs.defaultFS` with your COS bucket name, replace `fs.cosn.userinfo.secretId` with your COS secret Id, replace `fs.cosn.userinfo.secretKey` with your COS key. Hudi should be able to read/write from the bucket.
+
+```xml
+ <property>
+ <name>fs.defaultFS</name>
+ <value>cosn://bucketname</value>
+ <description>COS bucket name</description>
+ </property>
+
+ <property>
+ <name>fs.cosn.userinfo.secretId</name>
+ <value>cos-secretId</value>
+ <description>Tencent Cloud Secret Id</description>
+ </property>
+
+ <property>
+ <name>fs.cosn.userinfo.secretKey</name>
+ <value>cos-secretkey</value>
+ <description>Tencent Cloud Secret Key</description>
+ </property>
+
+ <property>
+ <name>fs.cosn.bucket.region</name>
+ <value>ap-region</value>
+ <description>The region where the bucket is located.</description>
+ </property>
+
+ <property>
+ <name>fs.cosn.bucket.endpoint_suffix</name>
+ <value>cos.endpoint.suffix</value>
+ <description>
+ COS endpoint to connect to.
+ For public cloud users, it is recommended not to set this option, and only the correct area field is required.
+ </description>
+ </property>
+
+ <property>
+ <name>fs.cosn.impl</name>
+ <value>org.apache.hadoop.fs.CosFileSystem</value>
+ <description>The implementation class of the CosN Filesystem.</description>
+ </property>
+
+ <property>
+ <name>fs.AbstractFileSystem.cosn.impl</name>
+ <value>org.apache.hadoop.fs.CosN</value>
+ <description>The implementation class of the CosN AbstractFileSystem.</description>
+ </property>
+
+```
+
+### Tencent Cloud COS Libs
+COS hadoop libraries to add to our classpath
+
+- org.apache.hadoop:hadoop-cos:2.8.5
diff --git a/website/docs/deployment.md b/website/versioned_docs/version-0.12.1/deployment.md
similarity index 98%
copy from website/docs/deployment.md
copy to website/versioned_docs/version-0.12.1/deployment.md
index 3236fd5657..f33633ac38 100644
--- a/website/docs/deployment.md
+++ b/website/versioned_docs/version-0.12.1/deployment.md
@@ -29,11 +29,11 @@ With Merge_On_Read Table, Hudi ingestion needs to also take care of compacting d
from varied sources such as DFS, Kafka and DB Changelogs and ingest them to hudi tables. It runs as a spark application in two modes.
To use DeltaStreamer in Spark, the `hudi-utilities-bundle` is required, by adding
-`--packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1` to the `spark-submit` command. From 0.11.0 release, we start
+`--packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1` to the `spark-submit` command. From 0.11.0 release, we start
to provide a new `hudi-utilities-slim-bundle` which aims to exclude dependencies that can cause conflicts and compatibility
issues with different versions of Spark. The `hudi-utilities-slim-bundle` should be used along with a Hudi Spark bundle
corresponding to the Spark version used, e.g.,
-`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.11.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.11.1`,
+`--packages org.apache.hudi:hudi-utilities-slim-bundle_2.12:0.12.1,org.apache.hudi:hudi-spark3.1-bundle_2.12:0.12.1`,
if using `hudi-utilities-bundle` solely in Spark encounters compatibility issues.
- **Run Once Mode** : In this mode, Deltastreamer performs one ingestion round which includes incrementally pulling events from upstream sources and ingesting them to hudi table. Background operations like cleaning old file versions and archiving hoodie timeline are automatically executed as part of the run. For Merge-On-Read tables, Compaction is also run inline as part of ingestion unless disabled by passing the flag "--disable-compaction". By default, Compaction is run inline for eve [...]
@@ -41,7 +41,7 @@ if using `hudi-utilities-bundle` solely in Spark encounters compatibility issues
Here is an example invocation for reading from kafka topic in a single-run mode and writing to Merge On Read table type in a yarn cluster.
```java
-[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1 \
+[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1 \
--master yarn \
--deploy-mode cluster \
--num-executors 10 \
@@ -89,7 +89,7 @@ Here is an example invocation for reading from kafka topic in a single-run mode
Here is an example invocation for reading from kafka topic in a continuous mode and writing to Merge On Read table type in a yarn cluster.
```java
-[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.11.1 \
+[hoodie]$ spark-submit --packages org.apache.hudi:hudi-utilities-bundle_2.11:0.12.1 \
--master yarn \
--deploy-mode cluster \
--num-executors 10 \
diff --git a/website/versioned_docs/version-0.12.1/disaster_recovery.md b/website/versioned_docs/version-0.12.1/disaster_recovery.md
new file mode 100644
index 0000000000..c2f53bc8cd
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/disaster_recovery.md
@@ -0,0 +1,296 @@
+---
+title: Disaster Recovery
+toc: true
+---
+
+Disaster Recovery is very much mission critical for any software. Especially when it comes to data systems, the impact could be very serious
+leading to delay in business decisions or even wrong business decisions at times. Apache Hudi has two operations to assist you in recovering
+data from a previous state: "savepoint" and "restore".
+
+## Savepoint
+
+As the name suggest, "savepoint" saves the table as of the commit time, so that it lets you restore the table to this
+savepoint at a later point in time if need be. Care is taken to ensure cleaner will not clean up any files that are savepointed.
+On similar lines, savepoint cannot be triggered on a commit that is already cleaned up. In simpler terms, this is synonymous
+to taking a backup, just that we don't make a new copy of the table, but just save the state of the table elegantly so that
+we can restore it later when in need.
+
+## Restore
+
+This operation lets you restore your table to one of the savepoint commit. This operation cannot be undone (or reversed) and so care
+should be taken before doing a restore. Hudi will delete all data files and commit files (timeline files) greater than the
+savepoint commit to which the table is being restored. You should pause all writes to the table when performing
+a restore since they are likely to fail while the restore is in progress. Also, reads could also fail since snapshot queries
+will be hitting latest files which has high possibility of getting deleted with restore.
+
+## Runbook
+
+Savepoint and restore can only be triggered from hudi-cli. Lets walk through an example of how one can take savepoint
+and later restore the state of the table.
+
+Lets create a hudi table via spark-shell. I am going to trigger few batches of inserts.
+
+```scala
+import org.apache.hudi.QuickstartUtils._
+import scala.collection.JavaConversions._
+import org.apache.spark.sql.SaveMode._
+import org.apache.hudi.DataSourceReadOptions._
+import org.apache.hudi.DataSourceWriteOptions._
+import org.apache.hudi.config.HoodieWriteConfig._
+
+val tableName = "hudi_trips_cow"
+val basePath = "file:///tmp/hudi_trips_cow"
+val dataGen = new DataGenerator
+
+// spark-shell
+val inserts = convertToStringList(dataGen.generateInserts(10))
+val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))
+df.write.format("hudi").
+ options(getQuickstartWriteConfigs).
+ option(PRECOMBINE_FIELD_OPT_KEY, "ts").
+ option(RECORDKEY_FIELD_OPT_KEY, "uuid").
+ option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
+ option(TABLE_NAME, tableName).
+ mode(Overwrite).
+ save(basePath)
+```
+
+Each batch inserst 10 records. Repeating for 4 more batches.
+```scala
+
+val inserts = convertToStringList(dataGen.generateInserts(10))
+val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))
+df.write.format("hudi").
+ options(getQuickstartWriteConfigs).
+ option(PRECOMBINE_FIELD_OPT_KEY, "ts").
+ option(RECORDKEY_FIELD_OPT_KEY, "uuid").
+ option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
+ option(TABLE_NAME, tableName).
+ mode(Append).
+ save(basePath)
+```
+
+Total record count should be 50.
+```scala
+val tripsSnapshotDF = spark.
+ read.
+ format("hudi").
+ load(basePath)
+tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")
+
+spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot ").show()
+
++--------------------------+
+|count(partitionpath, uuid)|
+ +--------------------------+
+| 50|
+ +--------------------------+
+```
+Let's take a look at the timeline after 5 batch of inserts.
+```shell
+ls -ltr /tmp/hudi_trips_cow/.hoodie
+total 128
+drwxr-xr-x 2 nsb wheel 64 Jan 28 16:00 archived
+-rw-r--r-- 1 nsb wheel 546 Jan 28 16:00 hoodie.properties
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:00 20220128160040171.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:00 20220128160040171.inflight
+-rw-r--r-- 1 nsb wheel 4374 Jan 28 16:00 20220128160040171.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:01 20220128160124637.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:01 20220128160124637.inflight
+-rw-r--r-- 1 nsb wheel 4414 Jan 28 16:01 20220128160124637.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160226172.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160226172.inflight
+-rw-r--r-- 1 nsb wheel 4427 Jan 28 16:02 20220128160226172.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160229636.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160229636.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160229636.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160245447.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160245447.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160245447.commit
+```
+
+Let's trigger a savepoint as of the latest commit. Savepoint can only be done via hudi-cli.
+
+```sh
+./hudi-cli.sh
+
+connect --path /tmp/hudi_trips_cow/
+commits show
+set --conf SPARK_HOME=<SPARK_HOME>
+savepoint create --commit 20220128160245447 --sparkMaster local[2]
+```
+
+Let's check the timeline after savepoint.
+```shell
+ls -ltr /tmp/hudi_trips_cow/.hoodie
+total 136
+drwxr-xr-x 2 nsb wheel 64 Jan 28 16:00 archived
+-rw-r--r-- 1 nsb wheel 546 Jan 28 16:00 hoodie.properties
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:00 20220128160040171.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:00 20220128160040171.inflight
+-rw-r--r-- 1 nsb wheel 4374 Jan 28 16:00 20220128160040171.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:01 20220128160124637.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:01 20220128160124637.inflight
+-rw-r--r-- 1 nsb wheel 4414 Jan 28 16:01 20220128160124637.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160226172.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160226172.inflight
+-rw-r--r-- 1 nsb wheel 4427 Jan 28 16:02 20220128160226172.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160229636.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160229636.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160229636.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160245447.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160245447.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160245447.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:05 20220128160245447.savepoint.inflight
+-rw-r--r-- 1 nsb wheel 1168 Jan 28 16:05 20220128160245447.savepoint
+```
+
+You could notice that savepoint meta files are added which keeps track of the files that are part of the latest table snapshot.
+
+Now, lets continue adding few more batches of inserts.
+Repeat below commands for 3 times.
+```scala
+val inserts = convertToStringList(dataGen.generateInserts(10))
+val df = spark.read.json(spark.sparkContext.parallelize(inserts, 2))
+df.write.format("hudi").
+ options(getQuickstartWriteConfigs).
+ option(PRECOMBINE_FIELD_OPT_KEY, "ts").
+ option(RECORDKEY_FIELD_OPT_KEY, "uuid").
+ option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
+ option(TABLE_NAME, tableName).
+ mode(Append).
+ save(basePath)
+```
+
+Total record count will be 80 since we have done 8 batches in total. (5 until savepoint and 3 after savepoint)
+```scala
+val tripsSnapshotDF = spark.
+ read.
+ format("hudi").
+ load(basePath)
+tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")
+
+spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot ").show()
++--------------------------+
+|count(partitionpath, uuid)|
+ +--------------------------+
+| 80|
+ +--------------------------+
+```
+
+Let's say something bad happened and you want to restore your table to a older snapshot. As we called out earlier, we can
+trigger restore only from hudi-cli. And do remember to bring down all of your writer processes while doing a restore.
+
+Lets checkout timeline once, before we trigger the restore.
+```shell
+ls -ltr /tmp/hudi_trips_cow/.hoodie
+total 208
+drwxr-xr-x 2 nsb wheel 64 Jan 28 16:00 archived
+-rw-r--r-- 1 nsb wheel 546 Jan 28 16:00 hoodie.properties
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:00 20220128160040171.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:00 20220128160040171.inflight
+-rw-r--r-- 1 nsb wheel 4374 Jan 28 16:00 20220128160040171.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:01 20220128160124637.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:01 20220128160124637.inflight
+-rw-r--r-- 1 nsb wheel 4414 Jan 28 16:01 20220128160124637.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160226172.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160226172.inflight
+-rw-r--r-- 1 nsb wheel 4427 Jan 28 16:02 20220128160226172.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160229636.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160229636.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160229636.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160245447.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160245447.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160245447.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:05 20220128160245447.savepoint.inflight
+-rw-r--r-- 1 nsb wheel 1168 Jan 28 16:05 20220128160245447.savepoint
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:06 20220128160620557.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:06 20220128160620557.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:06 20220128160620557.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:06 20220128160627501.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:06 20220128160627501.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:06 20220128160627501.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:06 20220128160630785.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:06 20220128160630785.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:06 20220128160630785.commit
+```
+
+If you are continuing in the same hudi-cli session, you can just execute "refresh" so that table state gets refreshed to
+its latest state. If not, connect to the table again.
+
+```shell
+./hudi-cli.sh
+
+connect --path /tmp/hudi_trips_cow/
+commits show
+set --conf SPARK_HOME=<SPARK_HOME>
+savepoints show
+╔═══════════════════╗
+║ SavepointTime ║
+╠═══════════════════╣
+║ 20220128160245447 ║
+╚═══════════════════╝
+savepoint rollback --savepoint 20220128160245447 --sparkMaster local[2]
+```
+
+Hudi table should have been restored to the savepointed commit 20220128160245447. Both data files and timeline files should have
+been deleted.
+```shell
+ls -ltr /tmp/hudi_trips_cow/.hoodie
+total 152
+drwxr-xr-x 2 nsb wheel 64 Jan 28 16:00 archived
+-rw-r--r-- 1 nsb wheel 546 Jan 28 16:00 hoodie.properties
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:00 20220128160040171.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:00 20220128160040171.inflight
+-rw-r--r-- 1 nsb wheel 4374 Jan 28 16:00 20220128160040171.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:01 20220128160124637.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:01 20220128160124637.inflight
+-rw-r--r-- 1 nsb wheel 4414 Jan 28 16:01 20220128160124637.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160226172.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160226172.inflight
+-rw-r--r-- 1 nsb wheel 4427 Jan 28 16:02 20220128160226172.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160229636.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160229636.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160229636.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:02 20220128160245447.commit.requested
+-rw-r--r-- 1 nsb wheel 2594 Jan 28 16:02 20220128160245447.inflight
+-rw-r--r-- 1 nsb wheel 4428 Jan 28 16:02 20220128160245447.commit
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:05 20220128160245447.savepoint.inflight
+-rw-r--r-- 1 nsb wheel 1168 Jan 28 16:05 20220128160245447.savepoint
+-rw-r--r-- 1 nsb wheel 0 Jan 28 16:07 20220128160732437.restore.inflight
+-rw-r--r-- 1 nsb wheel 4152 Jan 28 16:07 20220128160732437.restore
+```
+
+Lets check the total record count in the table. Should match the records we had, just before we triggered the savepoint.
+```scala
+val tripsSnapshotDF = spark.
+ read.
+ format("hudi").
+ load(basePath)
+tripsSnapshotDF.createOrReplaceTempView("hudi_trips_snapshot")
+
+spark.sql("select count(partitionpath, uuid) from hudi_trips_snapshot ").show()
++--------------------------+
+|count(partitionpath, uuid)|
+ +--------------------------+
+| 50|
+ +--------------------------+
+```
+
+As you could see, entire table state is restored back to the commit which was savepointed. Users can choose to trigger savepoint
+at regular cadence and keep deleting older savepoints when new ones are created. Hudi-cli has a command "savepoint delete"
+to assist in deleting a savepoint. Please do remember that cleaner may not clean the files that are savepointed. And so users
+should ensure they delete the savepoints from time to time. If not, the storage reclamation may not happen.
+
+Note: Savepoint and restore for MOR table is available only from 0.11.
+
+
+
+
+
+
+
+
+
+
+
diff --git a/website/versioned_docs/version-0.12.1/docker_demo.md b/website/versioned_docs/version-0.12.1/docker_demo.md
new file mode 100644
index 0000000000..13e0a50834
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/docker_demo.md
@@ -0,0 +1,1489 @@
+---
+title: Docker Demo
+keywords: [ hudi, docker, demo]
+toc: true
+last_modified_at: 2019-12-30T15:59:57-04:00
+---
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+## A Demo using docker containers
+
+Lets use a real world example to see how hudi works end to end. For this purpose, a self contained
+data infrastructure is brought up in a local docker cluster within your computer.
+
+The steps have been tested on a Mac laptop
+
+### Prerequisites
+
+ * Docker Setup : For Mac, Please follow the steps as defined in [https://docs.docker.com/v17.12/docker-for-mac/install/]. For running Spark-SQL queries, please ensure atleast 6 GB and 4 CPUs are allocated to Docker (See Docker -> Preferences -> Advanced). Otherwise, spark-SQL queries could be killed because of memory issues.
+ * kcat : A command-line utility to publish/consume from kafka topics. Use `brew install kcat` to install kcat.
+ * /etc/hosts : The demo references many services running in container by the hostname. Add the following settings to /etc/hosts
+
+ ```java
+ 127.0.0.1 adhoc-1
+ 127.0.0.1 adhoc-2
+ 127.0.0.1 namenode
+ 127.0.0.1 datanode1
+ 127.0.0.1 hiveserver
+ 127.0.0.1 hivemetastore
+ 127.0.0.1 kafkabroker
+ 127.0.0.1 sparkmaster
+ 127.0.0.1 zookeeper
+ ```
+ * Java : Java SE Development Kit 8.
+ * Maven : A build automation tool for Java projects.
+ * jq : A lightweight and flexible command-line JSON processor. Use `brew install jq` to install jq.
+
+Also, this has not been tested on some environments like Docker on Windows.
+
+
+## Setting up Docker Cluster
+
+
+### Build Hudi
+
+The first step is to build hudi. **Note** This step builds hudi on default supported scala version - 2.11.
+```java
+cd <HUDI_WORKSPACE>
+mvn clean package -Pintegration-tests -DskipTests
+```
+
+### Bringing up Demo Cluster
+
+The next step is to run the Docker compose script and setup configs for bringing up the cluster. These files are in the [Hudi repository](https://github.com/apache/hudi) which you should already have locally on your machine from the previous steps.
+
+This should pull the Docker images from Docker hub and setup the Docker cluster.
+
+<Tabs
+defaultValue="default"
+values={[
+{ label: 'Default', value: 'default', },
+{ label: 'Mac AArch64', value: 'm1', },
+]}
+>
+<TabItem value="default">
+
+```java
+cd docker
+./setup_demo.sh
+....
+....
+....
+[+] Running 10/13
+⠿ Container zookeeper Removed 8.6s
+⠿ Container datanode1 Removed 18.3s
+⠿ Container trino-worker-1 Removed 50.7s
+⠿ Container spark-worker-1 Removed 16.7s
+⠿ Container adhoc-2 Removed 16.9s
+⠿ Container graphite Removed 16.9s
+⠿ Container kafkabroker Removed 14.1s
+⠿ Container adhoc-1 Removed 14.1s
+⠿ Container presto-worker-1 Removed 11.9s
+⠿ Container presto-coordinator-1 Removed 34.6s
+.......
+......
+[+] Running 17/17
+⠿ adhoc-1 Pulled 2.9s
+⠿ graphite Pulled 2.8s
+⠿ spark-worker-1 Pulled 3.0s
+⠿ kafka Pulled 2.9s
+⠿ datanode1 Pulled 2.9s
+⠿ hivemetastore Pulled 2.9s
+⠿ hiveserver Pulled 3.0s
+⠿ hive-metastore-postgresql Pulled 2.8s
+⠿ presto-coordinator-1 Pulled 2.9s
+⠿ namenode Pulled 2.9s
+⠿ trino-worker-1 Pulled 2.9s
+⠿ sparkmaster Pulled 2.9s
+⠿ presto-worker-1 Pulled 2.9s
+⠿ zookeeper Pulled 2.8s
+⠿ adhoc-2 Pulled 2.9s
+⠿ historyserver Pulled 2.9s
+⠿ trino-coordinator-1 Pulled 2.9s
+[+] Running 17/17
+⠿ Container zookeeper Started 41.0s
+⠿ Container kafkabroker Started 41.7s
+⠿ Container graphite Started 41.5s
+⠿ Container hive-metastore-postgresql Running 0.0s
+⠿ Container namenode Running 0.0s
+⠿ Container hivemetastore Running 0.0s
+⠿ Container trino-coordinator-1 Runni... 0.0s
+⠿ Container presto-coordinator-1 Star... 42.1s
+⠿ Container historyserver Started 41.0s
+⠿ Container datanode1 Started 49.9s
+⠿ Container hiveserver Running 0.0s
+⠿ Container trino-worker-1 Started 42.1s
+⠿ Container sparkmaster Started 41.9s
+⠿ Container spark-worker-1 Started 50.2s
+⠿ Container adhoc-2 Started 38.5s
+⠿ Container adhoc-1 Started 38.5s
+⠿ Container presto-worker-1 Started 38.4s
+Copying spark default config and setting up configs
+Copying spark default config and setting up configs
+$ docker ps
+```
+
+</TabItem>
+<TabItem value="m1">
+Please note that Presto and Trino do not currently work for the docker demo on Mac AArch64
+
+```java
+cd docker
+./setup_demo.sh --mac-aarch64
+.......
+......
+[+] Running 12/12
+⠿ adhoc-1 Pulled 2.9s
+⠿ spark-worker-1 Pulled 3.0s
+⠿ kafka Pulled 2.9s
+⠿ datanode1 Pulled 2.9s
+⠿ hivemetastore Pulled 2.9s
+⠿ hiveserver Pulled 3.0s
+⠿ hive-metastore-postgresql Pulled 2.8s
+⠿ namenode Pulled 2.9s
+⠿ sparkmaster Pulled 2.9s
+⠿ zookeeper Pulled 2.8s
+⠿ adhoc-2 Pulled 2.9s
+⠿ historyserver Pulled 2.9s
+[+] Running 12/12
+⠿ Container zookeeper Started 41.0s
+⠿ Container kafkabroker Started 41.7s
+⠿ Container hive-metastore-postgresql Running 0.0s
+⠿ Container namenode Running 0.0s
+⠿ Container hivemetastore Running 0.0s
+⠿ Container historyserver Started 41.0s
+⠿ Container datanode1 Started 49.9s
+⠿ Container hiveserver Running 0.0s
+⠿ Container sparkmaster Started 41.9s
+⠿ Container spark-worker-1 Started 50.2s
+⠿ Container adhoc-2 Started 38.5s
+⠿ Container adhoc-1 Started 38.5s
+Copying spark default config and setting up configs
+Copying spark default config and setting up configs
+$ docker ps
+```
+</TabItem>
+
+</Tabs
+>
+
+At this point, the Docker cluster will be up and running. The demo cluster brings up the following services
+
+ * HDFS Services (NameNode, DataNode)
+ * Spark Master and Worker
+ * Hive Services (Metastore, HiveServer2 along with PostgresDB)
+ * Kafka Broker and a Zookeeper Node (Kafka will be used as upstream source for the demo)
+ * Containers for Presto setup (Presto coordinator and worker)
+ * Containers for Trino setup (Trino coordinator and worker)
+ * Adhoc containers to run Hudi/Hive CLI commands
+
+## Demo
+
+Stock Tracker data will be used to showcase different Hudi query types and the effects of Compaction.
+
+Take a look at the directory `docker/demo/data`. There are 2 batches of stock data - each at 1 minute granularity.
+The first batch contains stocker tracker data for some stock symbols during the first hour of trading window
+(9:30 a.m to 10:30 a.m). The second batch contains tracker data for next 30 mins (10:30 - 11 a.m). Hudi will
+be used to ingest these batches to a table which will contain the latest stock tracker data at hour level granularity.
+The batches are windowed intentionally so that the second batch contains updates to some of the rows in the first batch.
+
+### Step 1 : Publish the first batch to Kafka
+
+Upload the first batch to Kafka topic 'stock ticks'
+
+`cat docker/demo/data/batch_1.json | kcat -b kafkabroker -t stock_ticks -P`
+
+To check if the new topic shows up, use
+```java
+kcat -b kafkabroker -L -J | jq .
+{
+ "originating_broker": {
+ "id": 1001,
+ "name": "kafkabroker:9092/1001"
+ },
+ "query": {
+ "topic": "*"
+ },
+ "brokers": [
+ {
+ "id": 1001,
+ "name": "kafkabroker:9092"
+ }
+ ],
+ "topics": [
+ {
+ "topic": "stock_ticks",
+ "partitions": [
+ {
+ "partition": 0,
+ "leader": 1001,
+ "replicas": [
+ {
+ "id": 1001
+ }
+ ],
+ "isrs": [
+ {
+ "id": 1001
+ }
+ ]
+ }
+ ]
+ }
+ ]
+}
+```
+
+### Step 2: Incrementally ingest data from Kafka topic
+
+Hudi comes with a tool named DeltaStreamer. This tool can connect to variety of data sources (including Kafka) to
+pull changes and apply to Hudi table using upsert/insert primitives. Here, we will use the tool to download
+json data from kafka topic and ingest to both COW and MOR tables we initialized in the previous step. This tool
+automatically initializes the tables in the file-system if they do not exist yet.
+
+```java
+docker exec -it adhoc-2 /bin/bash
+
+# Run the following spark-submit command to execute the delta-streamer and ingest to stock_ticks_cow table in HDFS
+spark-submit \
+ --class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer $HUDI_UTILITIES_BUNDLE \
+ --table-type COPY_ON_WRITE \
+ --source-class org.apache.hudi.utilities.sources.JsonKafkaSource \
+ --source-ordering-field ts \
+ --target-base-path /user/hive/warehouse/stock_ticks_cow \
+ --target-table stock_ticks_cow --props /var/demo/config/kafka-source.properties \
+ --schemaprovider-class org.apache.hudi.utilities.schema.FilebasedSchemaProvider
+
+# Run the following spark-submit command to execute the delta-streamer and ingest to stock_ticks_mor table in HDFS
+spark-submit \
+ --class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer $HUDI_UTILITIES_BUNDLE \
+ --table-type MERGE_ON_READ \
+ --source-class org.apache.hudi.utilities.sources.JsonKafkaSource \
+ --source-ordering-field ts \
+ --target-base-path /user/hive/warehouse/stock_ticks_mor \
+ --target-table stock_ticks_mor \
+ --props /var/demo/config/kafka-source.properties \
+ --schemaprovider-class org.apache.hudi.utilities.schema.FilebasedSchemaProvider \
+ --disable-compaction
+
+# As part of the setup (Look at setup_demo.sh), the configs needed for DeltaStreamer is uploaded to HDFS. The configs
+# contain mostly Kafa connectivity settings, the avro-schema to be used for ingesting along with key and partitioning fields.
+
+exit
+```
+
+You can use HDFS web-browser to look at the tables
+`http://namenode:50070/explorer.html#/user/hive/warehouse/stock_ticks_cow`.
+
+You can explore the new partition folder created in the table along with a "commit" / "deltacommit"
+file under .hoodie which signals a successful commit.
+
+There will be a similar setup when you browse the MOR table
+`http://namenode:50070/explorer.html#/user/hive/warehouse/stock_ticks_mor`
+
+
+### Step 3: Sync with Hive
+
+At this step, the tables are available in HDFS. We need to sync with Hive to create new Hive tables and add partitions
+inorder to run Hive queries against those tables.
+
+```java
+docker exec -it adhoc-2 /bin/bash
+
+# This command takes in HiveServer URL and COW Hudi table location in HDFS and sync the HDFS state to Hive
+/var/hoodie/ws/hudi-sync/hudi-hive-sync/run_sync_tool.sh \
+ --jdbc-url jdbc:hive2://hiveserver:10000 \
+ --user hive \
+ --pass hive \
+ --partitioned-by dt \
+ --base-path /user/hive/warehouse/stock_ticks_cow \
+ --database default \
+ --table stock_ticks_cow \
+ --partition-value-extractor org.apache.hudi.hive.SlashEncodedDayPartitionValueExtractor
+.....
+2020-01-25 19:51:28,953 INFO [main] hive.HiveSyncTool (HiveSyncTool.java:syncHoodieTable(129)) - Sync complete for stock_ticks_cow
+.....
+
+# Now run hive-sync for the second data-set in HDFS using Merge-On-Read (MOR table type)
+/var/hoodie/ws/hudi-sync/hudi-hive-sync/run_sync_tool.sh \
+ --jdbc-url jdbc:hive2://hiveserver:10000 \
+ --user hive \
+ --pass hive \
+ --partitioned-by dt \
+ --base-path /user/hive/warehouse/stock_ticks_mor \
+ --database default \
+ --table stock_ticks_mor \
+ --partition-value-extractor org.apache.hudi.hive.SlashEncodedDayPartitionValueExtractor
+...
+2020-01-25 19:51:51,066 INFO [main] hive.HiveSyncTool (HiveSyncTool.java:syncHoodieTable(129)) - Sync complete for stock_ticks_mor_ro
+...
+2020-01-25 19:51:51,569 INFO [main] hive.HiveSyncTool (HiveSyncTool.java:syncHoodieTable(129)) - Sync complete for stock_ticks_mor_rt
+....
+
+exit
+```
+After executing the above command, you will notice
+
+1. A hive table named `stock_ticks_cow` created which supports Snapshot and Incremental queries on Copy On Write table.
+2. Two new tables `stock_ticks_mor_rt` and `stock_ticks_mor_ro` created for the Merge On Read table. The former
+supports Snapshot and Incremental queries (providing near-real time data) while the later supports ReadOptimized queries.
+
+
+### Step 4 (a): Run Hive Queries
+
+Run a hive query to find the latest timestamp ingested for stock symbol 'GOOG'. You will notice that both snapshot
+(for both COW and MOR _rt table) and read-optimized queries (for MOR _ro table) give the same value "10:29 a.m" as Hudi create a
+parquet file for the first batch of data.
+
+```java
+docker exec -it adhoc-2 /bin/bash
+beeline -u jdbc:hive2://hiveserver:10000 \
+ --hiveconf hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat \
+ --hiveconf hive.stats.autogather=false
+
+# List Tables
+0: jdbc:hive2://hiveserver:10000> show tables;
++---------------------+--+
+| tab_name |
++---------------------+--+
+| stock_ticks_cow |
+| stock_ticks_mor_ro |
+| stock_ticks_mor_rt |
++---------------------+--+
+3 rows selected (1.199 seconds)
+0: jdbc:hive2://hiveserver:10000>
+
+
+# Look at partitions that were added
+0: jdbc:hive2://hiveserver:10000> show partitions stock_ticks_mor_rt;
++----------------+--+
+| partition |
++----------------+--+
+| dt=2018-08-31 |
++----------------+--+
+1 row selected (0.24 seconds)
+
+
+# COPY-ON-WRITE Queries:
+=========================
+
+
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:29:00 |
++---------+----------------------+--+
+
+Now, run a projection query:
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924221953 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924221953 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+
+# Merge-On-Read Queries:
+==========================
+
+Lets run similar queries against M-O-R table. Lets look at both
+ReadOptimized and Snapshot(realtime data) queries supported by M-O-R table
+
+# Run ReadOptimized Query. Notice that the latest timestamp is 10:29
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:29:00 |
++---------+----------------------+--+
+1 row selected (6.326 seconds)
+
+
+# Run Snapshot Query. Notice that the latest timestamp is again 10:29
+
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:29:00 |
++---------+----------------------+--+
+1 row selected (1.606 seconds)
+
+
+# Run Read Optimized and Snapshot project queries
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924222155 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924222155 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+exit
+```
+
+### Step 4 (b): Run Spark-SQL Queries
+Hudi support Spark as query processor just like Hive. Here are the same hive queries
+running in spark-sql
+
+```java
+docker exec -it adhoc-1 /bin/bash
+$SPARK_INSTALL/bin/spark-shell \
+ --jars $HUDI_SPARK_BUNDLE \
+ --master local[2] \
+ --driver-class-path $HADOOP_CONF_DIR \
+ --conf spark.sql.hive.convertMetastoreParquet=false \
+ --deploy-mode client \
+ --driver-memory 1G \
+ --executor-memory 3G \
+ --num-executors 1
+...
+
+Welcome to
+ ____ __
+ / __/__ ___ _____/ /__
+ _\ \/ _ \/ _ `/ __/ '_/
+ /___/ .__/\_,_/_/ /_/\_\ version 2.4.4
+ /_/
+
+Using Scala version 2.11.12 (OpenJDK 64-Bit Server VM, Java 1.8.0_212)
+Type in expressions to have them evaluated.
+Type :help for more information.
+
+scala> spark.sql("show tables").show(100, false)
++--------+------------------+-----------+
+|database|tableName |isTemporary|
++--------+------------------+-----------+
+|default |stock_ticks_cow |false |
+|default |stock_ticks_mor_ro|false |
+|default |stock_ticks_mor_rt|false |
++--------+------------------+-----------+
+
+# Copy-On-Write Table
+
+## Run max timestamp query against COW table
+
+scala> spark.sql("select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG'").show(100, false)
+[Stage 0:> (0 + 1) / 1]SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
+SLF4J: Defaulting to no-operation (NOP) logger implementation
+SLF4J: See http://www.slf4j.org/codes#StaticLoggerBinder for further details.
++------+-------------------+
+|symbol|max(ts) |
++------+-------------------+
+|GOOG |2018-08-31 10:29:00|
++------+-------------------+
+
+## Projection Query
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG'").show(100, false)
++-------------------+------+-------------------+------+---------+--------+
+|_hoodie_commit_time|symbol|ts |volume|open |close |
++-------------------+------+-------------------+------+---------+--------+
+|20180924221953 |GOOG |2018-08-31 09:59:00|6330 |1230.5 |1230.02 |
+|20180924221953 |GOOG |2018-08-31 10:29:00|3391 |1230.1899|1230.085|
++-------------------+------+-------------------+------+---------+--------+
+
+# Merge-On-Read Queries:
+==========================
+
+Lets run similar queries against M-O-R table. Lets look at both
+ReadOptimized and Snapshot queries supported by M-O-R table
+
+# Run ReadOptimized Query. Notice that the latest timestamp is 10:29
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG'").show(100, false)
++------+-------------------+
+|symbol|max(ts) |
++------+-------------------+
+|GOOG |2018-08-31 10:29:00|
++------+-------------------+
+
+
+# Run Snapshot Query. Notice that the latest timestamp is again 10:29
+
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG'").show(100, false)
++------+-------------------+
+|symbol|max(ts) |
++------+-------------------+
+|GOOG |2018-08-31 10:29:00|
++------+-------------------+
+
+# Run Read Optimized and Snapshot project queries
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG'").show(100, false)
++-------------------+------+-------------------+------+---------+--------+
+|_hoodie_commit_time|symbol|ts |volume|open |close |
++-------------------+------+-------------------+------+---------+--------+
+|20180924222155 |GOOG |2018-08-31 09:59:00|6330 |1230.5 |1230.02 |
+|20180924222155 |GOOG |2018-08-31 10:29:00|3391 |1230.1899|1230.085|
++-------------------+------+-------------------+------+---------+--------+
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG'").show(100, false)
++-------------------+------+-------------------+------+---------+--------+
+|_hoodie_commit_time|symbol|ts |volume|open |close |
++-------------------+------+-------------------+------+---------+--------+
+|20180924222155 |GOOG |2018-08-31 09:59:00|6330 |1230.5 |1230.02 |
+|20180924222155 |GOOG |2018-08-31 10:29:00|3391 |1230.1899|1230.085|
++-------------------+------+-------------------+------+---------+--------+
+```
+
+### Step 4 (c): Run Presto Queries
+
+Here are the Presto queries for similar Hive and Spark queries. Currently, Presto does not support snapshot or incremental queries on Hudi tables.
+
+```java
+docker exec -it presto-worker-1 presto --server presto-coordinator-1:8090
+presto> show catalogs;
+ Catalog
+-----------
+ hive
+ jmx
+ localfile
+ system
+(4 rows)
+
+Query 20190817_134851_00000_j8rcz, FINISHED, 1 node
+Splits: 19 total, 19 done (100.00%)
+0:04 [0 rows, 0B] [0 rows/s, 0B/s]
+
+presto> use hive.default;
+USE
+presto:default> show tables;
+ Table
+--------------------
+ stock_ticks_cow
+ stock_ticks_mor_ro
+ stock_ticks_mor_rt
+(3 rows)
+
+Query 20190822_181000_00001_segyw, FINISHED, 2 nodes
+Splits: 19 total, 19 done (100.00%)
+0:05 [3 rows, 99B] [0 rows/s, 18B/s]
+
+
+# COPY-ON-WRITE Queries:
+=========================
+
+
+presto:default> select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20190822_181011_00002_segyw, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0:12 [197 rows, 613B] [16 rows/s, 50B/s]
+
+presto:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20190822180221 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20190822180221 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20190822_181141_00003_segyw, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0:02 [197 rows, 613B] [109 rows/s, 341B/s]
+
+
+# Merge-On-Read Queries:
+==========================
+
+Lets run similar queries against M-O-R table.
+
+# Run ReadOptimized Query. Notice that the latest timestamp is 10:29
+ presto:default> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20190822_181158_00004_segyw, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0:02 [197 rows, 613B] [110 rows/s, 343B/s]
+
+
+presto:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20190822180250 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20190822180250 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20190822_181256_00006_segyw, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0:02 [197 rows, 613B] [92 rows/s, 286B/s]
+
+presto:default> exit
+```
+
+### Step 4 (d): Run Trino Queries
+
+Here are the similar queries with Trino. Currently, Trino does not support snapshot or incremental queries on Hudi tables.
+```java
+docker exec -it adhoc-2 trino --server trino-coordinator-1:8091
+trino> show catalogs;
+ Catalog
+---------
+ hive
+ system
+(2 rows)
+
+Query 20220112_055038_00000_sac73, FINISHED, 1 node
+Splits: 19 total, 19 done (100.00%)
+3.74 [0 rows, 0B] [0 rows/s, 0B/s]
+
+trino> use hive.default;
+USE
+trino:default> show tables;
+ Table
+--------------------
+ stock_ticks_cow
+ stock_ticks_mor_ro
+ stock_ticks_mor_rt
+(3 rows)
+
+Query 20220112_055050_00003_sac73, FINISHED, 2 nodes
+Splits: 19 total, 19 done (100.00%)
+1.84 [3 rows, 102B] [1 rows/s, 55B/s]
+
+# COPY-ON-WRITE Queries:
+=========================
+
+trino:default> select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20220112_055101_00005_sac73, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+4.08 [197 rows, 442KB] [48 rows/s, 108KB/s]
+
+trino:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20220112054822108 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20220112054822108 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20220112_055113_00006_sac73, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0.40 [197 rows, 450KB] [487 rows/s, 1.09MB/s]
+
+# Merge-On-Read Queries:
+==========================
+
+Lets run similar queries against MOR table.
+
+# Run ReadOptimized Query. Notice that the latest timestamp is 10:29
+
+trino:default> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20220112_055125_00007_sac73, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0.50 [197 rows, 442KB] [395 rows/s, 888KB/s]
+
+trino:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20220112054844841 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20220112054844841 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20220112_055136_00008_sac73, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0.49 [197 rows, 450KB] [404 rows/s, 924KB/s]
+
+trino:default> exit
+```
+
+### Step 5: Upload second batch to Kafka and run DeltaStreamer to ingest
+
+Upload the second batch of data and ingest this batch using delta-streamer. As this batch does not bring in any new
+partitions, there is no need to run hive-sync
+
+```java
+cat docker/demo/data/batch_2.json | kcat -b kafkabroker -t stock_ticks -P
+
+# Within Docker container, run the ingestion command
+docker exec -it adhoc-2 /bin/bash
+
+# Run the following spark-submit command to execute the delta-streamer and ingest to stock_ticks_cow table in HDFS
+spark-submit \
+ --class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer $HUDI_UTILITIES_BUNDLE \
+ --table-type COPY_ON_WRITE \
+ --source-class org.apache.hudi.utilities.sources.JsonKafkaSource \
+ --source-ordering-field ts \
+ --target-base-path /user/hive/warehouse/stock_ticks_cow \
+ --target-table stock_ticks_cow \
+ --props /var/demo/config/kafka-source.properties \
+ --schemaprovider-class org.apache.hudi.utilities.schema.FilebasedSchemaProvider
+
+# Run the following spark-submit command to execute the delta-streamer and ingest to stock_ticks_mor table in HDFS
+spark-submit \
+ --class org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer $HUDI_UTILITIES_BUNDLE \
+ --table-type MERGE_ON_READ \
+ --source-class org.apache.hudi.utilities.sources.JsonKafkaSource \
+ --source-ordering-field ts \
+ --target-base-path /user/hive/warehouse/stock_ticks_mor \
+ --target-table stock_ticks_mor \
+ --props /var/demo/config/kafka-source.properties \
+ --schemaprovider-class org.apache.hudi.utilities.schema.FilebasedSchemaProvider \
+ --disable-compaction
+
+exit
+```
+
+With Copy-On-Write table, the second ingestion by DeltaStreamer resulted in a new version of Parquet file getting created.
+See `http://namenode:50070/explorer.html#/user/hive/warehouse/stock_ticks_cow/2018/08/31`
+
+With Merge-On-Read table, the second ingestion merely appended the batch to an unmerged delta (log) file.
+Take a look at the HDFS filesystem to get an idea: `http://namenode:50070/explorer.html#/user/hive/warehouse/stock_ticks_mor/2018/08/31`
+
+### Step 6 (a): Run Hive Queries
+
+With Copy-On-Write table, the Snapshot query immediately sees the changes as part of second batch once the batch
+got committed as each ingestion creates newer versions of parquet files.
+
+With Merge-On-Read table, the second ingestion merely appended the batch to an unmerged delta (log) file.
+This is the time, when ReadOptimized and Snapshot queries will provide different results. ReadOptimized query will still
+return "10:29 am" as it will only read from the Parquet file. Snapshot query will do on-the-fly merge and return
+latest committed data which is "10:59 a.m".
+
+```java
+docker exec -it adhoc-2 /bin/bash
+beeline -u jdbc:hive2://hiveserver:10000 \
+ --hiveconf hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat \
+ --hiveconf hive.stats.autogather=false
+
+# Copy On Write Table:
+
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+--+
+1 row selected (1.932 seconds)
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924221953 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924224524 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+As you can notice, the above queries now reflect the changes that came as part of ingesting second batch.
+
+
+# Merge On Read Table:
+
+# Read Optimized Query
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:29:00 |
++---------+----------------------+--+
+1 row selected (1.6 seconds)
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924222155 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+# Snapshot Query
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+--+
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924224537 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+exit
+```
+
+### Step 6 (b): Run Spark SQL Queries
+
+Running the same queries in Spark-SQL:
+
+```java
+docker exec -it adhoc-1 /bin/bash
+$SPARK_INSTALL/bin/spark-shell \
+ --jars $HUDI_SPARK_BUNDLE \
+ --driver-class-path $HADOOP_CONF_DIR \
+ --conf spark.sql.hive.convertMetastoreParquet=false \
+ --deploy-mode client \
+ --driver-memory 1G \
+ --master local[2] \
+ --executor-memory 3G \
+ --num-executors 1
+
+# Copy On Write Table:
+
+scala> spark.sql("select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG'").show(100, false)
++------+-------------------+
+|symbol|max(ts) |
++------+-------------------+
+|GOOG |2018-08-31 10:59:00|
++------+-------------------+
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG'").show(100, false)
+
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924221953 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924224524 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+As you can notice, the above queries now reflect the changes that came as part of ingesting second batch.
+
+
+# Merge On Read Table:
+
+# Read Optimized Query
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG'").show(100, false)
++---------+----------------------+
+| symbol | _c1 |
++---------+----------------------+
+| GOOG | 2018-08-31 10:29:00 |
++---------+----------------------+
+1 row selected (1.6 seconds)
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG'").show(100, false)
++----------------------+---------+----------------------+---------+------------+-----------+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924222155 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085 |
++----------------------+---------+----------------------+---------+------------+-----------+
+
+# Snapshot Query
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG'").show(100, false)
++---------+----------------------+
+| symbol | _c1 |
++---------+----------------------+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG'").show(100, false)
++----------------------+---------+----------------------+---------+------------+-----------+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+
+| 20180924222155 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924224537 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+
+
+exit
+```
+
+### Step 6 (c): Run Presto Queries
+
+Running the same queries on Presto for ReadOptimized queries.
+
+```java
+docker exec -it presto-worker-1 presto --server presto-coordinator-1:8090
+presto> use hive.default;
+USE
+
+# Copy On Write Table:
+
+presto:default>select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:59:00
+(1 row)
+
+Query 20190822_181530_00007_segyw, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0:02 [197 rows, 613B] [125 rows/s, 389B/s]
+
+presto:default>select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20190822180221 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20190822181433 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215
+(2 rows)
+
+Query 20190822_181545_00008_segyw, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0:02 [197 rows, 613B] [106 rows/s, 332B/s]
+
+As you can notice, the above queries now reflect the changes that came as part of ingesting second batch.
+
+
+# Merge On Read Table:
+
+# Read Optimized Query
+presto:default> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20190822_181602_00009_segyw, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0:01 [197 rows, 613B] [139 rows/s, 435B/s]
+
+presto:default>select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20190822180250 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20190822180250 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20190822_181615_00010_segyw, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0:01 [197 rows, 613B] [154 rows/s, 480B/s]
+
+presto:default> exit
+```
+
+### Step 6 (d): Run Trino Queries
+
+Running the same queries on Trino for Read-Optimized queries.
+
+```java
+docker exec -it adhoc-2 trino --server trino-coordinator-1:8091
+trino> use hive.default;
+USE
+
+# Copy On Write Table:
+
+trino:default> select symbol, max(ts) from stock_ticks_cow group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:59:00
+(1 row)
+
+Query 20220112_055443_00012_sac73, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0.63 [197 rows, 442KB] [310 rows/s, 697KB/s]
+
+trino:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20220112054822108 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20220112055352654 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215
+(2 rows)
+
+Query 20220112_055450_00013_sac73, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0.65 [197 rows, 450KB] [303 rows/s, 692KB/s]
+
+As you can notice, the above queries now reflect the changes that came as part of ingesting second batch.
+
+# Merge On Read Table:
+# Read Optimized Query
+
+trino:default> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:29:00
+(1 row)
+
+Query 20220112_055500_00014_sac73, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0.59 [197 rows, 442KB] [336 rows/s, 756KB/s]
+
+trino:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20220112054844841 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20220112054844841 | GOOG | 2018-08-31 10:29:00 | 3391 | 1230.1899 | 1230.085
+(2 rows)
+
+Query 20220112_055506_00015_sac73, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0.35 [197 rows, 450KB] [556 rows/s, 1.24MB/s]
+
+trino:default> exit
+```
+
+### Step 7 (a): Incremental Query for COPY-ON-WRITE Table
+
+With 2 batches of data ingested, lets showcase the support for incremental queries in Hudi Copy-On-Write tables
+
+Lets take the same projection query example
+
+```java
+docker exec -it adhoc-2 /bin/bash
+beeline -u jdbc:hive2://hiveserver:10000 \
+ --hiveconf hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat \
+ --hiveconf hive.stats.autogather=false
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924064621 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924065039 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+```
+
+As you notice from the above queries, there are 2 commits - 20180924064621 and 20180924065039 in timeline order.
+When you follow the steps, you will be getting different timestamps for commits. Substitute them
+in place of the above timestamps.
+
+To show the effects of incremental-query, let us assume that a reader has already seen the changes as part of
+ingesting first batch. Now, for the reader to see effect of the second batch, he/she has to keep the start timestamp to
+the commit time of the first batch (20180924064621) and run incremental query
+
+Hudi incremental mode provides efficient scanning for incremental queries by filtering out files that do not have any
+candidate rows using hudi-managed metadata.
+
+```java
+docker exec -it adhoc-2 /bin/bash
+beeline -u jdbc:hive2://hiveserver:10000 \
+ --hiveconf hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat \
+ --hiveconf hive.stats.autogather=false
+
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_cow.consume.mode=INCREMENTAL;
+No rows affected (0.009 seconds)
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_cow.consume.max.commits=3;
+No rows affected (0.009 seconds)
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_cow.consume.start.timestamp=20180924064621;
+```
+
+With the above setting, file-ids that do not have any updates from the commit 20180924065039 is filtered out without scanning.
+Here is the incremental query :
+
+```java
+0: jdbc:hive2://hiveserver:10000>
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow where symbol = 'GOOG' and `_hoodie_commit_time` > '20180924064621';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924065039 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+1 row selected (0.83 seconds)
+0: jdbc:hive2://hiveserver:10000>
+```
+
+### Step 7 (b): Incremental Query with Spark SQL:
+
+```java
+docker exec -it adhoc-1 /bin/bash
+$SPARK_INSTALL/bin/spark-shell \
+ --jars $HUDI_SPARK_BUNDLE \
+ --driver-class-path $HADOOP_CONF_DIR \
+ --conf spark.sql.hive.convertMetastoreParquet=false \
+ --deploy-mode client \
+ --driver-memory 1G \
+ --master local[2] \
+ --executor-memory 3G \
+ --num-executors 1
+
+Welcome to
+ ____ __
+ / __/__ ___ _____/ /__
+ _\ \/ _ \/ _ `/ __/ '_/
+ /___/ .__/\_,_/_/ /_/\_\ version 2.4.4
+ /_/
+
+Using Scala version 2.11.12 (OpenJDK 64-Bit Server VM, Java 1.8.0_212)
+Type in expressions to have them evaluated.
+Type :help for more information.
+
+scala> import org.apache.hudi.DataSourceReadOptions
+import org.apache.hudi.DataSourceReadOptions
+
+# In the below query, 20180925045257 is the first commit's timestamp
+scala> val hoodieIncViewDF = spark.read.format("org.apache.hudi").option(DataSourceReadOptions.QUERY_TYPE_OPT_KEY, DataSourceReadOptions.QUERY_TYPE_INCREMENTAL_OPT_VAL).option(DataSourceReadOptions.BEGIN_INSTANTTIME_OPT_KEY, "20180924064621").load("/user/hive/warehouse/stock_ticks_cow")
+SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
+SLF4J: Defaulting to no-operation (NOP) logger implementation
+SLF4J: See http://www.slf4j.org/codes#StaticLoggerBinder for further details.
+hoodieIncViewDF: org.apache.spark.sql.DataFrame = [_hoodie_commit_time: string, _hoodie_commit_seqno: string ... 15 more fields]
+
+scala> hoodieIncViewDF.registerTempTable("stock_ticks_cow_incr_tmp1")
+warning: there was one deprecation warning; re-run with -deprecation for details
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_cow_incr_tmp1 where symbol = 'GOOG'").show(100, false);
++----------------------+---------+----------------------+---------+------------+-----------+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+
+| 20180924065039 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+
+```
+
+### Step 8: Schedule and Run Compaction for Merge-On-Read table
+
+Lets schedule and run a compaction to create a new version of columnar file so that read-optimized readers will see fresher data.
+Again, You can use Hudi CLI to manually schedule and run compaction
+
+```java
+docker exec -it adhoc-1 /bin/bash
+root@adhoc-1:/opt# /var/hoodie/ws/hudi-cli/hudi-cli.sh
+...
+Table command getting loaded
+HoodieSplashScreen loaded
+===================================================================
+* ___ ___ *
+* /\__\ ___ /\ \ ___ *
+* / / / /\__\ / \ \ /\ \ *
+* / /__/ / / / / /\ \ \ \ \ \ *
+* / \ \ ___ / / / / / \ \__\ / \__\ *
+* / /\ \ /\__\ / /__/ ___ / /__/ \ |__| / /\/__/ *
+* \/ \ \/ / / \ \ \ /\__\ \ \ \ / / / /\/ / / *
+* \ / / \ \ / / / \ \ / / / \ /__/ *
+* / / / \ \/ / / \ \/ / / \ \__\ *
+* / / / \ / / \ / / \/__/ *
+* \/__/ \/__/ \/__/ Apache Hudi CLI *
+* *
+===================================================================
+
+Welcome to Apache Hudi CLI. Please type help if you are looking for help.
+hudi->connect --path /user/hive/warehouse/stock_ticks_mor
+18/09/24 06:59:34 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
+18/09/24 06:59:35 INFO table.HoodieTableMetaClient: Loading HoodieTableMetaClient from /user/hive/warehouse/stock_ticks_mor
+18/09/24 06:59:35 INFO util.FSUtils: Hadoop Configuration: fs.defaultFS: [hdfs://namenode:8020], Config:[Configuration: core-default.xml, core-site.xml, mapred-default.xml, mapred-site.xml, yarn-default.xml, yarn-site.xml, hdfs-default.xml, hdfs-site.xml], FileSystem: [DFS[DFSClient[clientName=DFSClient_NONMAPREDUCE_-1261652683_11, ugi=root (auth:SIMPLE)]]]
+18/09/24 06:59:35 INFO table.HoodieTableConfig: Loading table properties from /user/hive/warehouse/stock_ticks_mor/.hoodie/hoodie.properties
+18/09/24 06:59:36 INFO table.HoodieTableMetaClient: Finished Loading Table of type MERGE_ON_READ(version=1) from /user/hive/warehouse/stock_ticks_mor
+Metadata for table stock_ticks_mor loaded
+hoodie:stock_ticks_mor->compactions show all
+20/02/10 03:41:32 INFO timeline.HoodieActiveTimeline: Loaded instants [[20200210015059__clean__COMPLETED], [20200210015059__deltacommit__COMPLETED], [20200210022758__clean__COMPLETED], [20200210022758__deltacommit__COMPLETED], [==>20200210023843__compaction__REQUESTED]]
+___________________________________________________________________
+| Compaction Instant Time| State | Total FileIds to be Compacted|
+|==================================================================|
+
+# Schedule a compaction. This will use Spark Launcher to schedule compaction
+hoodie:stock_ticks_mor->compaction schedule --hoodieConfigs hoodie.compact.inline.max.delta.commits=1
+....
+Compaction successfully completed for 20180924070031
+
+# Now refresh and check again. You will see that there is a new compaction requested
+
+hoodie:stock_ticks_mor->refresh
+18/09/24 07:01:16 INFO table.HoodieTableMetaClient: Loading HoodieTableMetaClient from /user/hive/warehouse/stock_ticks_mor
+18/09/24 07:01:16 INFO table.HoodieTableConfig: Loading table properties from /user/hive/warehouse/stock_ticks_mor/.hoodie/hoodie.properties
+18/09/24 07:01:16 INFO table.HoodieTableMetaClient: Finished Loading Table of type MERGE_ON_READ(version=1) from /user/hive/warehouse/stock_ticks_mor
+Metadata for table stock_ticks_mor loaded
+
+hoodie:stock_ticks_mor->compactions show all
+18/09/24 06:34:12 INFO timeline.HoodieActiveTimeline: Loaded instants [[20180924041125__clean__COMPLETED], [20180924041125__deltacommit__COMPLETED], [20180924042735__clean__COMPLETED], [20180924042735__deltacommit__COMPLETED], [==>20180924063245__compaction__REQUESTED]]
+___________________________________________________________________
+| Compaction Instant Time| State | Total FileIds to be Compacted|
+|==================================================================|
+| 20180924070031 | REQUESTED| 1 |
+
+# Execute the compaction. The compaction instant value passed below must be the one displayed in the above "compactions show all" query
+hoodie:stock_ticks_mor->compaction run --compactionInstant 20180924070031 --parallelism 2 --sparkMemory 1G --schemaFilePath /var/demo/config/schema.avsc --retry 1
+....
+Compaction successfully completed for 20180924070031
+
+## Now check if compaction is completed
+
+hoodie:stock_ticks_mor->refresh
+18/09/24 07:03:00 INFO table.HoodieTableMetaClient: Loading HoodieTableMetaClient from /user/hive/warehouse/stock_ticks_mor
+18/09/24 07:03:00 INFO table.HoodieTableConfig: Loading table properties from /user/hive/warehouse/stock_ticks_mor/.hoodie/hoodie.properties
+18/09/24 07:03:00 INFO table.HoodieTableMetaClient: Finished Loading Table of type MERGE_ON_READ(version=1) from /user/hive/warehouse/stock_ticks_mor
+Metadata for table stock_ticks_mor loaded
+
+hoodie:stock_ticks_mor->compactions show all
+18/09/24 07:03:15 INFO timeline.HoodieActiveTimeline: Loaded instants [[20180924064636__clean__COMPLETED], [20180924064636__deltacommit__COMPLETED], [20180924065057__clean__COMPLETED], [20180924065057__deltacommit__COMPLETED], [20180924070031__commit__COMPLETED]]
+___________________________________________________________________
+| Compaction Instant Time| State | Total FileIds to be Compacted|
+|==================================================================|
+| 20180924070031 | COMPLETED| 1 |
+
+```
+
+### Step 9: Run Hive Queries including incremental queries
+
+You will see that both ReadOptimized and Snapshot queries will show the latest committed data.
+Lets also run the incremental query for MOR table.
+From looking at the below query output, it will be clear that the fist commit time for the MOR table is 20180924064636
+and the second commit time is 20180924070031
+
+```java
+docker exec -it adhoc-2 /bin/bash
+beeline -u jdbc:hive2://hiveserver:10000 \
+ --hiveconf hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat \
+ --hiveconf hive.stats.autogather=false
+
+# Read Optimized Query
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+--+
+1 row selected (1.6 seconds)
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924064636 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924070031 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+# Snapshot Query
+0: jdbc:hive2://hiveserver:10000> select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG';
+WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
++---------+----------------------+--+
+| symbol | _c1 |
++---------+----------------------+--+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+--+
+
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924064636 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924070031 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+# Incremental Query:
+
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_mor.consume.mode=INCREMENTAL;
+No rows affected (0.008 seconds)
+# Max-Commits covers both second batch and compaction commit
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_mor.consume.max.commits=3;
+No rows affected (0.007 seconds)
+0: jdbc:hive2://hiveserver:10000> set hoodie.stock_ticks_mor.consume.start.timestamp=20180924064636;
+No rows affected (0.013 seconds)
+# Query:
+0: jdbc:hive2://hiveserver:10000> select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG' and `_hoodie_commit_time` > '20180924064636';
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+| 20180924070031 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+--+
+
+exit
+```
+
+### Step 10: Read Optimized and Snapshot queries for MOR with Spark-SQL after compaction
+
+```java
+docker exec -it adhoc-1 /bin/bash
+$SPARK_INSTALL/bin/spark-shell \
+ --jars $HUDI_SPARK_BUNDLE \
+ --driver-class-path $HADOOP_CONF_DIR \
+ --conf spark.sql.hive.convertMetastoreParquet=false \
+ --deploy-mode client \
+ --driver-memory 1G \
+ --master local[2] \
+ --executor-memory 3G \
+ --num-executors 1
+
+# Read Optimized Query
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG'").show(100, false)
++---------+----------------------+
+| symbol | max(ts) |
++---------+----------------------+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+
+1 row selected (1.6 seconds)
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG'").show(100, false)
++----------------------+---------+----------------------+---------+------------+-----------+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+
+| 20180924064636 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924070031 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+
+
+# Snapshot Query
+scala> spark.sql("select symbol, max(ts) from stock_ticks_mor_rt group by symbol HAVING symbol = 'GOOG'").show(100, false)
++---------+----------------------+
+| symbol | max(ts) |
++---------+----------------------+
+| GOOG | 2018-08-31 10:59:00 |
++---------+----------------------+
+
+scala> spark.sql("select `_hoodie_commit_time`, symbol, ts, volume, open, close from stock_ticks_mor_rt where symbol = 'GOOG'").show(100, false)
++----------------------+---------+----------------------+---------+------------+-----------+
+| _hoodie_commit_time | symbol | ts | volume | open | close |
++----------------------+---------+----------------------+---------+------------+-----------+
+| 20180924064636 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02 |
+| 20180924070031 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215 |
++----------------------+---------+----------------------+---------+------------+-----------+
+```
+
+### Step 11: Presto Read Optimized queries on MOR table after compaction
+
+```java
+docker exec -it presto-worker-1 presto --server presto-coordinator-1:8090
+presto> use hive.default;
+USE
+
+# Read Optimized Query
+resto:default> select symbol, max(ts) from stock_ticks_mor_ro group by symbol HAVING symbol = 'GOOG';
+ symbol | _col1
+--------+---------------------
+ GOOG | 2018-08-31 10:59:00
+(1 row)
+
+Query 20190822_182319_00011_segyw, FINISHED, 1 node
+Splits: 49 total, 49 done (100.00%)
+0:01 [197 rows, 613B] [133 rows/s, 414B/s]
+
+presto:default> select "_hoodie_commit_time", symbol, ts, volume, open, close from stock_ticks_mor_ro where symbol = 'GOOG';
+ _hoodie_commit_time | symbol | ts | volume | open | close
+---------------------+--------+---------------------+--------+-----------+----------
+ 20190822180250 | GOOG | 2018-08-31 09:59:00 | 6330 | 1230.5 | 1230.02
+ 20190822181944 | GOOG | 2018-08-31 10:59:00 | 9021 | 1227.1993 | 1227.215
+(2 rows)
+
+Query 20190822_182333_00012_segyw, FINISHED, 1 node
+Splits: 17 total, 17 done (100.00%)
+0:02 [197 rows, 613B] [98 rows/s, 307B/s]
+
+presto:default>
+```
+
+
+This brings the demo to an end.
+
+## Testing Hudi in Local Docker environment
+
+You can bring up a hadoop docker environment containing Hadoop, Hive and Spark services with support for hudi.
+```java
+$ mvn pre-integration-test -DskipTests
+```
+The above command builds docker images for all the services with
+current Hudi source installed at /var/hoodie/ws and also brings up the services using a compose file. We
+currently use Hadoop (v2.8.4), Hive (v2.3.3) and Spark (v2.4.4) in docker images.
+
+To bring down the containers
+```java
+$ cd hudi-integ-test
+$ mvn docker-compose:down
+```
+
+If you want to bring up the docker containers, use
+```java
+$ cd hudi-integ-test
+$ mvn docker-compose:up -DdetachedMode=true
+```
+
+Hudi is a library that is operated in a broader data analytics/ingestion environment
+involving Hadoop, Hive and Spark. Interoperability with all these systems is a key objective for us. We are
+actively adding integration-tests under __hudi-integ-test/src/test/java__ that makes use of this
+docker environment (See __hudi-integ-test/src/test/java/org/apache/hudi/integ/ITTestHoodieSanity.java__ )
+
+
+### Building Local Docker Containers:
+
+The docker images required for demo and running integration test are already in docker-hub. The docker images
+and compose scripts are carefully implemented so that they serve dual-purpose
+
+1. The docker images have inbuilt hudi jar files with environment variable pointing to those jars (HUDI_HADOOP_BUNDLE, ...)
+2. For running integration-tests, we need the jars generated locally to be used for running services within docker. The
+ docker-compose scripts (see `docker/compose/docker-compose_hadoop284_hive233_spark244.yml`) ensures local jars override
+ inbuilt jars by mounting local HUDI workspace over the docker location
+3. As these docker containers have mounted local HUDI workspace, any changes that happen in the workspace would automatically
+ reflect in the containers. This is a convenient way for developing and verifying Hudi for
+ developers who do not own a distributed environment. Note that this is how integration tests are run.
+
+This helps avoid maintaining separate docker images and avoids the costly step of building HUDI docker images locally.
+But if users want to test hudi from locations with lower network bandwidth, they can still build local images
+run the script
+`docker/build_local_docker_images.sh` to build local docker images before running `docker/setup_demo.sh`
+
+Here are the commands:
+
+```java
+cd docker
+./build_local_docker_images.sh
+.....
+
+[INFO] Reactor Summary:
+[INFO]
+[INFO] Hudi ............................................... SUCCESS [ 2.507 s]
+[INFO] hudi-common ........................................ SUCCESS [ 15.181 s]
+[INFO] hudi-aws ........................................... SUCCESS [ 2.621 s]
+[INFO] hudi-timeline-service .............................. SUCCESS [ 1.811 s]
+[INFO] hudi-client ........................................ SUCCESS [ 0.065 s]
+[INFO] hudi-client-common ................................. SUCCESS [ 8.308 s]
+[INFO] hudi-hadoop-mr ..................................... SUCCESS [ 3.733 s]
+[INFO] hudi-spark-client .................................. SUCCESS [ 18.567 s]
+[INFO] hudi-sync-common ................................... SUCCESS [ 0.794 s]
+[INFO] hudi-hive-sync ..................................... SUCCESS [ 3.691 s]
+[INFO] hudi-spark-datasource .............................. SUCCESS [ 0.121 s]
+[INFO] hudi-spark-common_2.11 ............................. SUCCESS [ 12.979 s]
+[INFO] hudi-spark2_2.11 ................................... SUCCESS [ 12.516 s]
+[INFO] hudi-spark_2.11 .................................... SUCCESS [ 35.649 s]
+[INFO] hudi-utilities_2.11 ................................ SUCCESS [ 5.881 s]
+[INFO] hudi-utilities-bundle_2.11 ......................... SUCCESS [ 12.661 s]
+[INFO] hudi-cli ........................................... SUCCESS [ 19.858 s]
+[INFO] hudi-java-client ................................... SUCCESS [ 3.221 s]
+[INFO] hudi-flink-client .................................. SUCCESS [ 5.731 s]
+[INFO] hudi-spark3_2.12 ................................... SUCCESS [ 8.627 s]
+[INFO] hudi-dla-sync ...................................... SUCCESS [ 1.459 s]
+[INFO] hudi-sync .......................................... SUCCESS [ 0.053 s]
+[INFO] hudi-hadoop-mr-bundle .............................. SUCCESS [ 5.652 s]
+[INFO] hudi-hive-sync-bundle .............................. SUCCESS [ 1.623 s]
+[INFO] hudi-spark-bundle_2.11 ............................. SUCCESS [ 10.930 s]
+[INFO] hudi-presto-bundle ................................. SUCCESS [ 3.652 s]
+[INFO] hudi-timeline-server-bundle ........................ SUCCESS [ 4.804 s]
+[INFO] hudi-trino-bundle .................................. SUCCESS [ 5.991 s]
+[INFO] hudi-hadoop-docker ................................. SUCCESS [ 2.061 s]
+[INFO] hudi-hadoop-base-docker ............................ SUCCESS [ 53.372 s]
+[INFO] hudi-hadoop-base-java11-docker ..................... SUCCESS [ 48.545 s]
+[INFO] hudi-hadoop-namenode-docker ........................ SUCCESS [ 6.098 s]
+[INFO] hudi-hadoop-datanode-docker ........................ SUCCESS [ 4.825 s]
+[INFO] hudi-hadoop-history-docker ......................... SUCCESS [ 3.829 s]
+[INFO] hudi-hadoop-hive-docker ............................ SUCCESS [ 52.660 s]
+[INFO] hudi-hadoop-sparkbase-docker ....................... SUCCESS [01:02 min]
+[INFO] hudi-hadoop-sparkmaster-docker ..................... SUCCESS [ 12.661 s]
+[INFO] hudi-hadoop-sparkworker-docker ..................... SUCCESS [ 4.350 s]
+[INFO] hudi-hadoop-sparkadhoc-docker ...................... SUCCESS [ 59.083 s]
+[INFO] hudi-hadoop-presto-docker .......................... SUCCESS [01:31 min]
+[INFO] hudi-hadoop-trinobase-docker ....................... SUCCESS [02:40 min]
+[INFO] hudi-hadoop-trinocoordinator-docker ................ SUCCESS [ 14.003 s]
+[INFO] hudi-hadoop-trinoworker-docker ..................... SUCCESS [ 12.100 s]
+[INFO] hudi-integ-test .................................... SUCCESS [ 13.581 s]
+[INFO] hudi-integ-test-bundle ............................. SUCCESS [ 27.212 s]
+[INFO] hudi-examples ...................................... SUCCESS [ 8.090 s]
+[INFO] hudi-flink_2.11 .................................... SUCCESS [ 4.217 s]
+[INFO] hudi-kafka-connect ................................. SUCCESS [ 2.966 s]
+[INFO] hudi-flink-bundle_2.11 ............................. SUCCESS [ 11.155 s]
+[INFO] hudi-kafka-connect-bundle .......................... SUCCESS [ 12.369 s]
+[INFO] ------------------------------------------------------------------------
+[INFO] BUILD SUCCESS
+[INFO] ------------------------------------------------------------------------
+[INFO] Total time: 14:35 min
+[INFO] Finished at: 2022-01-12T18:41:27-08:00
+[INFO] ------------------------------------------------------------------------
+```
diff --git a/website/versioned_docs/version-0.12.1/encryption.md b/website/versioned_docs/version-0.12.1/encryption.md
new file mode 100644
index 0000000000..f6483420aa
--- /dev/null
+++ b/website/versioned_docs/version-0.12.1/encryption.md
@@ -0,0 +1,73 @@
+---
+title: Encryption
+keywords: [ hudi, security ]
+summary: This section offers an overview of encryption feature in Hudi
+toc: true
+last_modified_at: 2022-02-14T15:59:57-04:00
+---
+
+Since Hudi 0.11.0, Spark 3.2 support has been added and accompanying that, Parquet 1.12 has been included, which brings encryption feature to Hudi. In this section, we will show a guide on how to enable encryption in Hudi tables.
+
+## Encrypt Copy-on-Write tables
+
+First, make sure Hudi Spark 3.2 bundle jar is used.
+
+Then, set the following Parquet configurations to make data written to Hudi COW tables encrypted.
+
+```java
+// Activate Parquet encryption, driven by Hadoop properties
+jsc.hadoopConfiguration().set("parquet.crypto.factory.class", "org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
+// Explicit master keys (base64 encoded) - required only for mock InMemoryKMS
+jsc.hadoopConfiguration().set("parquet.encryption.kms.client.class" , "org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
+jsc.hadoopConfiguration().set("parquet.encryption.key.list", "k1:AAECAwQFBgcICQoLDA0ODw==, k2:AAECAAECAAECAAECAAECAA==")
+// Write encrypted dataframe files.
+// Column "rider" will be protected with master key "key2".
+// Parquet file footers will be protected with master key "key1"
+jsc.hadoopConfiguration().set("parquet.encryption.footer.key", "k1")
+jsc.hadoopConfiguration().set("parquet.encryption.column.keys", "k2:rider")
+
+spark.read().format("org.apache.hudi").load("path").show();
+```
+
+Here is an example.
+
+```java
+JavaSparkContext jsc = new JavaSparkContext(spark.sparkContext());
+jsc.hadoopConfiguration().set("parquet.crypto.factory.class", "org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory");
+jsc.hadoopConfiguration().set("parquet.encryption.kms.client.class" , "org.apache.parquet.crypto.keytools.mocks.InMemoryKMS");
+jsc.hadoopConfiguration().set("parquet.encryption.footer.key", "k1");
+jsc.hadoopConfiguration().set("parquet.encryption.column.keys", "k2:rider");
+jsc.hadoopConfiguration().set("parquet.encryption.key.list", "k1:AAECAwQFBgcICQoLDA0ODw==, k2:AAECAAECAAECAAECAAECAA==");
+
+QuickstartUtils.DataGenerator dataGen = new QuickstartUtils.DataGenerator();
+List<String> inserts = convertToStringList(dataGen.generateInserts(3));
+Dataset<Row> inputDF1 = spark.read().json(jsc.parallelize(inserts, 1));
+inputDF1.write().format("org.apache.hudi")
+ .option("hoodie.table.name", "encryption_table")
+ .option("hoodie.upsert.shuffle.parallelism","2")
+ .option("hoodie.insert.shuffle.parallelism","2")
+ .option("hoodie.delete.shuffle.parallelism","2")
+ .option("hoodie.bulkinsert.shuffle.parallelism","2")
+ .mode(SaveMode.Overwrite)
+ .save("path");
+
+spark.read().format("org.apache.hudi").load("path").select("rider").show();
+```
+
+Reading the table works if configured correctly
+
+```
++---------+
+|rider |
++---------+
+|rider-213|
+|rider-213|
+|rider-213|
++---------+
+```
+
+Read more from [Spark docs](https://spark.apache.org/docs/latest/sql-data-sources-parquet.html#columnar-encryption) and [Parquet docs](https://github.com/apache/parquet-format/blob/master/Encryption.md).
+
+### Note
+
+This feature is currently only available for COW tables due to only Parquet base files present there.
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+---
+title: FAQs
+keywords: [hudi, writing, reading]
+last_modified_at: 2021-08-18T15:59:57-04:00
+---
+# FAQs
+
+## General
+
+### When is Hudi useful for me or my organization?
+
+If you are looking to quickly ingest data onto HDFS or cloud storage, Hudi can provide you tools to [help](https://hudi.apache.org/docs/writing_data/). Also, if you have ETL/hive/spark jobs which are slow/taking up a lot of resources, Hudi can potentially help by providing an incremental approach to reading and writing data.
+
+As an organization, Hudi can help you build an [efficient data lake](https://docs.google.com/presentation/d/1FHhsvh70ZP6xXlHdVsAI0g__B_6Mpto5KQFlZ0b8-mM/edit#slide=id.p), solving some of the most complex, low-level storage management problems, while putting data into hands of your data analysts, engineers and scientists much quicker.
+
+### What are some non-goals for Hudi?
+
+Hudi is not designed for any OLTP use-cases, where typically you are using existing NoSQL/RDBMS data stores. Hudi cannot replace your in-memory analytical database (at-least not yet!). Hudi support near-real time ingestion in the order of few minutes, trading off latency for efficient batching. If you truly desirable sub-minute processing delays, then stick with your favorite stream processing solution.
+
+### What is incremental processing? Why does Hudi docs/talks keep talking about it?
+
+Incremental processing was first introduced by Vinoth Chandar, in the O'reilly [blog](https://www.oreilly.com/content/ubers-case-for-incremental-processing-on-hadoop/), that set off most of this effort. In purely technical terms, incremental processing merely refers to writing mini-batch programs in streaming processing style. Typical batch jobs consume **all input** and recompute **all output**, every few hours. Typical stream processing jobs consume some **new input** and recompute **n [...]
+
+While we can merely refer to this as stream processing, we call it *incremental processing*, to distinguish from purely stream processing pipelines built using Apache Flink, Apache Apex or Apache Kafka Streams.
+
+### What is the difference between copy-on-write (COW) vs merge-on-read (MOR) storage types?
+
+**Copy On Write** - This storage type enables clients to ingest data on columnar file formats, currently parquet. Any new data that is written to the Hudi dataset using COW storage type, will write new parquet files. Updating an existing set of rows will result in a rewrite of the entire parquet files that collectively contain the affected rows being updated. Hence, all writes to such datasets are limited by parquet writing performance, the larger the parquet file, the higher is the time [...]
+
+**Merge On Read** - This storage type enables clients to ingest data quickly onto row based data format such as avro. Any new data that is written to the Hudi dataset using MOR table type, will write new log/delta files that internally store the data as avro encoded bytes. A compaction process (configured as inline or asynchronous) will convert log file format to columnar file format (parquet). Two different InputFormats expose 2 different views of this data, Read Optimized view exposes [...]
+
+More details can be found [here](https://hudi.apache.org/docs/concepts/) and also [Design And Architecture](https://cwiki.apache.org/confluence/display/HUDI/Design+And+Architecture).
+
+### How do I choose a storage type for my workload?
+
+A key goal of Hudi is to provide **upsert functionality** that is orders of magnitude faster than rewriting entire tables or partitions.
+
+Choose Copy-on-write storage if :
+
+ - You are looking for a simple alternative, that replaces your existing parquet tables without any need for real-time data.
+ - Your current job is rewriting entire table/partition to deal with updates, while only a few files actually change in each partition.
+ - You are happy keeping things operationally simpler (no compaction etc), with the ingestion/write performance bound by the [parquet file size](https://hudi.apache.org/docs/configurations#hoodieparquetmaxfilesize) and the number of such files affected/dirtied by updates
+ - Your workload is fairly well-understood and does not have sudden bursts of large amount of update or inserts to older partitions. COW absorbs all the merging cost on the writer side and thus these sudden changes can clog up your ingestion and interfere with meeting normal mode ingest latency targets.
+
+Choose merge-on-read storage if :
+
+ - You want the data to be ingested as quickly & queryable as much as possible.
+ - Your workload can have sudden spikes/changes in pattern (e.g bulk updates to older transactions in upstream database causing lots of updates to old partitions on DFS). Asynchronous compaction helps amortize the write amplification caused by such scenarios, while normal ingestion keeps up with incoming stream of changes.
+
+Immaterial of what you choose, Hudi provides
+
+ - Snapshot isolation and atomic write of batch of records
+ - Incremental pulls
+ - Ability to de-duplicate data
+
+Find more [here](https://hudi.apache.org/docs/concepts/).
+
+### Is Hudi an analytical database?
+
+A typical database has a bunch of long running storage servers always running, which takes writes and reads. Hudi's architecture is very different and for good reasons. It's highly decoupled where writes and queries/reads can be scaled independently to be able to handle the scale challenges. So, it may not always seems like a database.
+
+Nonetheless, Hudi is designed very much like a database and provides similar functionality (upserts, change capture) and semantics (transactional writes, snapshot isolated reads).
+
+### How do I model the data stored in Hudi?
+
+When writing data into Hudi, you model the records like how you would on a key-value store - specify a key field (unique for a single partition/across dataset), a partition field (denotes partition to place key into) and preCombine/combine logic that specifies how to handle duplicates in a batch of records written. This model enables Hudi to enforce primary key constraints like you would get on a database table. See [here](https://hudi.apache.org/docs/writing_data/) for an example.
+
+When querying/reading data, Hudi just presents itself as a json-like hierarchical table, everyone is used to querying using Hive/Spark/Presto over Parquet/Json/Avro.
+
+### Why does Hudi require a key field to be configured?
+
+Hudi was designed to support fast record level Upserts and thus requires a key to identify whether an incoming record is
+an insert or update or delete, and process accordingly. Additionally, Hudi automatically maintains indexes on this primary
+key and for many use-cases like CDC, ensuring such primary key constraints is crucial to ensure data quality. In this context,
+pre combine key helps reconcile multiple records with same key in a single batch of input records. Even for append-only data
+streams, Hudi supports key based de-duplication before inserting records. For e-g; you may have atleast once data integration
+systems like Kafka MirrorMaker that can introduce duplicates during failures. Even for plain old batch pipelines, keys
+help eliminate duplication that could be caused by backfill pipelines, where commonly it's unclear what set of records
+need to be re-written. We are actively working on making keys easier by only requiring them for Upsert and/or automatically
+generate the key internally (much like RDBMS row_ids)
+
+### Does Hudi support cloud storage/object stores?
+
+Yes. Generally speaking, Hudi is able to provide its functionality on any Hadoop FileSystem implementation and thus can read and write datasets on [Cloud stores](https://hudi.apache.org/docs/cloud) (Amazon S3 or Microsoft Azure or Google Cloud Storage). Over time, Hudi has also incorporated specific design aspects that make building Hudi datasets on the cloud easy, such as [consistency checks for s3](https://hudi.apache.org/docs/configurations#hoodieconsistencycheckenabled), Zero moves/r [...]
+
+### What versions of Hive/Spark/Hadoop are support by Hudi?
+
+As of September 2019, Hudi can support Spark 2.1+, Hive 2.x, Hadoop 2.7+ (not Hadoop 3).
+
+### How does Hudi actually store data inside a dataset?
+
+At a high level, Hudi is based on MVCC design that writes data to versioned parquet/base files and log files that contain changes to the base file. All the files are stored under a partitioning scheme for the dataset, which closely resembles how Apache Hive tables are laid out on DFS. Please refer [here](https://hudi.apache.org/docs/concepts/) for more details.
+
+## Using Hudi
+
+### What are some ways to write a Hudi dataset?
+
+Typically, you obtain a set of partial updates/inserts from your source and issue [write operations](https://hudi.apache.org/docs/write_operations/) against a Hudi dataset. If you ingesting data from any of the standard sources like Kafka, or tailing DFS, the [delta streamer](https://hudi.apache.org/docs/hoodie_deltastreamer#deltastreamer) tool is invaluable and provides an easy, self-managed solution to getting data written into Hudi. You can also write your own code to capture data fr [...]
+
+### How is a Hudi job deployed?
+
+The nice thing about Hudi writing is that it just runs like any other spark job would on a YARN/Mesos or even a K8S cluster. So you could simply use the Spark UI to get visibility into write operations.
+
+### How can I now query the Hudi dataset I just wrote?
+
+Unless Hive sync is enabled, the dataset written by Hudi using one of the methods above can simply be queries via the Spark datasource like any other source.
+
+```scala
+val hoodieROView = spark.read.format("org.apache.hudi").load(basePath + "/path/to/partitions/*")
+val hoodieIncViewDF = spark.read().format("org.apache.hudi")
+ .option(DataSourceReadOptions.VIEW_TYPE_OPT_KEY(), DataSourceReadOptions.VIEW_TYPE_INCREMENTAL_OPT_VAL())
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