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Posted to commits@hudi.apache.org by "suryaprasanna (via GitHub)" <gi...@apache.org> on 2023/05/31 20:30:33 UTC
[GitHub] [hudi] suryaprasanna opened a new pull request, #8858: [UBER] Support SqlFileBasedSource for DeltaStreamer
suryaprasanna opened a new pull request, #8858:
URL: https://github.com/apache/hudi/pull/8858
### Change Logs
Introducing a new Source type called SqlFileBasedSource which can be used to create complex SQL statements by and caches datasets in-memory and running complex joins on them.
### Impact
This is a new feature should not impact existing use cases.
### Risk level (write none, low medium or high below)
None.
### Documentation Update
Some documentation is added within the classes, but since new configs and source are introduced it requires updates to the
### Contributor's checklist
- [x] Read through [contributor's guide](https://hudi.apache.org/contribute/how-to-contribute)
- [x] Change Logs and Impact were stated clearly
- [x] Adequate tests were added if applicable
- [x] CI passed
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1585991074
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## CI report:
* ac360c703518f4f7a468c86e93f08cbcbacf22b4 Azure: [FAILURE](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17530)
* 06b637c413d4d3ad002339e9428b733dcc53e04b UNKNOWN
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1570948967
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## CI report:
* ac360c703518f4f7a468c86e93f08cbcbacf22b4 Azure: [PENDING](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17530)
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[GitHub] [hudi] danny0405 commented on a diff in pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "danny0405 (via GitHub)" <gi...@apache.org>.
danny0405 commented on code in PR #8858:
URL: https://github.com/apache/hudi/pull/8858#discussion_r1212583636
##########
hudi-utilities/src/test/java/org/apache/hudi/utilities/deltastreamer/TestHoodieDeltaStreamer.java:
##########
@@ -2325,7 +2325,7 @@ public void testCsvDFSSourceNoHeaderWithoutSchemaProviderAndWithTransformer() th
public void testCsvDFSSourceNoHeaderWithSchemaProviderAndTransformer() throws Exception {
// The CSV files do not have header, the columns are separated by '\t'
// File schema provider is used, transformer is applied
- // In this case, the source and target schema come from the Avro schema files
+ // In this case, the source and target schema come from the Avro schema filesTestSqlFileBasedSour
testCsvDFSSource(false, '\t', true, Collections.singletonList(TripsWithDistanceTransformer.class.getName()));
Review Comment:
unnecessary change?
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1571101921
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## CI report:
* ac360c703518f4f7a468c86e93f08cbcbacf22b4 Azure: [FAILURE](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17530)
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1570939581
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1586036603
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## CI report:
* 06b637c413d4d3ad002339e9428b733dcc53e04b Azure: [SUCCESS](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17739)
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[GitHub] [hudi] danny0405 commented on a diff in pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "danny0405 (via GitHub)" <gi...@apache.org>.
danny0405 commented on code in PR #8858:
URL: https://github.com/apache/hudi/pull/8858#discussion_r1212583839
##########
hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/SqlFileBasedSource.java:
##########
@@ -0,0 +1,105 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hudi.utilities.sources;
+
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+
+import org.apache.hudi.DataSourceUtils;
+import org.apache.hudi.common.config.TypedProperties;
+import org.apache.hudi.common.fs.FSUtils;
+import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.exception.HoodieIOException;
+import org.apache.hudi.utilities.schema.SchemaProvider;
+
+import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.SparkSession;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Scanner;
+
+/**
+ * File-based SQL Source that uses SQL queries in a file to read from any table.
+ *
+ * <p>SQL file path should be configured using this hoodie config:
+ *
+ * <p>hoodie.deltastreamer.source.sql.file = 'hdfs://xxx/source.sql'
+ *
+ * <p>File-based SQL Source is used for one time backfill scenarios, this won't update the deltastreamer.checkpoint.key
+ * to the processed commit, instead it will fetch the latest successful checkpoint key and set that value as
+ * this backfill commits checkpoint so that it won't interrupt the regular incremental processing.
+ *
+ * <p>To fetch and use the latest incremental checkpoint, you need to also set this hoodie_conf for deltastremer jobs:
+ *
+ * <p>hoodie.write.meta.key.prefixes = 'deltastreamer.checkpoint.key'
+ */
+public class SqlFileBasedSource extends RowSource {
+
+ private static final Logger LOG = LoggerFactory.getLogger(SqlFileBasedSource.class);
+ private final String sourceSqlFile;
+ private final boolean shouldEmitCheckPoint;
+
+ public SqlFileBasedSource(
+ TypedProperties props,
+ JavaSparkContext sparkContext,
+ SparkSession sparkSession,
+ SchemaProvider schemaProvider) {
+ super(props, sparkContext, sparkSession, schemaProvider);
+ DataSourceUtils.checkRequiredProperties(
+ props, Collections.singletonList(SqlFileBasedSource.Config.SOURCE_SQL_FILE));
+ sourceSqlFile = props.getString(SqlFileBasedSource.Config.SOURCE_SQL_FILE);
+ shouldEmitCheckPoint = props.getBoolean(Config.EMIT_EPOCH_CHECKPOINT, false);
+ }
+
+ @Override
+ protected Pair<Option<Dataset<Row>>, String> fetchNextBatch(
+ Option<String> lastCkptStr, long sourceLimit) {
+ Dataset<Row> rows = null;
+ final FileSystem fs = FSUtils.getFs(sourceSqlFile, sparkContext.hadoopConfiguration(), true);
+ try {
+ final Scanner scanner = new Scanner(fs.open(new Path(sourceSqlFile)));
+ scanner.useDelimiter(";");
+ while (scanner.hasNext()) {
+ String sqlStr = scanner.next().trim();
+ if (!sqlStr.isEmpty()) {
+ LOG.info(sqlStr);
+ // overwrite the same dataset object until the last statement then return.
+ rows = sparkSession.sql(sqlStr);
+ }
+ }
+ return Pair.of(Option.of(rows), shouldEmitCheckPoint ? String.valueOf(System.currentTimeMillis()) : null);
+ } catch (IOException ioe) {
+ throw new HoodieIOException("Error reading source SQL file.", ioe);
+ }
+ }
+
+ /**
+ * Configs supported.
+ */
+ private static class Config {
+ private static final String SOURCE_SQL_FILE = "hoodie.deltastreamer.source.sql.file";
+ private static final String EMIT_EPOCH_CHECKPOINT = "hoodie.deltastreamer.source.sql.checkpoint.emit";
Review Comment:
Should we make these keys public?
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[GitHub] [hudi] danny0405 merged pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "danny0405 (via GitHub)" <gi...@apache.org>.
danny0405 merged PR #8858:
URL: https://github.com/apache/hudi/pull/8858
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[GitHub] [hudi] hudi-bot commented on pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #8858:
URL: https://github.com/apache/hudi/pull/8858#issuecomment-1585995847
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## CI report:
* ac360c703518f4f7a468c86e93f08cbcbacf22b4 Azure: [FAILURE](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17530)
* 06b637c413d4d3ad002339e9428b733dcc53e04b Azure: [PENDING](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=17739)
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[GitHub] [hudi] suryaprasanna commented on a diff in pull request #8858: [HUDI-6301][UBER] Support SqlFileBasedSource for DeltaStreamer
Posted by "suryaprasanna (via GitHub)" <gi...@apache.org>.
suryaprasanna commented on code in PR #8858:
URL: https://github.com/apache/hudi/pull/8858#discussion_r1225685232
##########
hudi-utilities/src/test/java/org/apache/hudi/utilities/deltastreamer/TestHoodieDeltaStreamer.java:
##########
@@ -2325,7 +2325,7 @@ public void testCsvDFSSourceNoHeaderWithoutSchemaProviderAndWithTransformer() th
public void testCsvDFSSourceNoHeaderWithSchemaProviderAndTransformer() throws Exception {
// The CSV files do not have header, the columns are separated by '\t'
// File schema provider is used, transformer is applied
- // In this case, the source and target schema come from the Avro schema files
+ // In this case, the source and target schema come from the Avro schema filesTestSqlFileBasedSour
testCsvDFSSource(false, '\t', true, Collections.singletonList(TripsWithDistanceTransformer.class.getName()));
Review Comment:
Fixed it.
##########
hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/SqlFileBasedSource.java:
##########
@@ -0,0 +1,105 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hudi.utilities.sources;
+
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+
+import org.apache.hudi.DataSourceUtils;
+import org.apache.hudi.common.config.TypedProperties;
+import org.apache.hudi.common.fs.FSUtils;
+import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.exception.HoodieIOException;
+import org.apache.hudi.utilities.schema.SchemaProvider;
+
+import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.SparkSession;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Scanner;
+
+/**
+ * File-based SQL Source that uses SQL queries in a file to read from any table.
+ *
+ * <p>SQL file path should be configured using this hoodie config:
+ *
+ * <p>hoodie.deltastreamer.source.sql.file = 'hdfs://xxx/source.sql'
+ *
+ * <p>File-based SQL Source is used for one time backfill scenarios, this won't update the deltastreamer.checkpoint.key
+ * to the processed commit, instead it will fetch the latest successful checkpoint key and set that value as
+ * this backfill commits checkpoint so that it won't interrupt the regular incremental processing.
+ *
+ * <p>To fetch and use the latest incremental checkpoint, you need to also set this hoodie_conf for deltastremer jobs:
+ *
+ * <p>hoodie.write.meta.key.prefixes = 'deltastreamer.checkpoint.key'
+ */
+public class SqlFileBasedSource extends RowSource {
+
+ private static final Logger LOG = LoggerFactory.getLogger(SqlFileBasedSource.class);
+ private final String sourceSqlFile;
+ private final boolean shouldEmitCheckPoint;
+
+ public SqlFileBasedSource(
+ TypedProperties props,
+ JavaSparkContext sparkContext,
+ SparkSession sparkSession,
+ SchemaProvider schemaProvider) {
+ super(props, sparkContext, sparkSession, schemaProvider);
+ DataSourceUtils.checkRequiredProperties(
+ props, Collections.singletonList(SqlFileBasedSource.Config.SOURCE_SQL_FILE));
+ sourceSqlFile = props.getString(SqlFileBasedSource.Config.SOURCE_SQL_FILE);
+ shouldEmitCheckPoint = props.getBoolean(Config.EMIT_EPOCH_CHECKPOINT, false);
+ }
+
+ @Override
+ protected Pair<Option<Dataset<Row>>, String> fetchNextBatch(
+ Option<String> lastCkptStr, long sourceLimit) {
+ Dataset<Row> rows = null;
+ final FileSystem fs = FSUtils.getFs(sourceSqlFile, sparkContext.hadoopConfiguration(), true);
+ try {
+ final Scanner scanner = new Scanner(fs.open(new Path(sourceSqlFile)));
+ scanner.useDelimiter(";");
+ while (scanner.hasNext()) {
+ String sqlStr = scanner.next().trim();
+ if (!sqlStr.isEmpty()) {
+ LOG.info(sqlStr);
+ // overwrite the same dataset object until the last statement then return.
+ rows = sparkSession.sql(sqlStr);
+ }
+ }
+ return Pair.of(Option.of(rows), shouldEmitCheckPoint ? String.valueOf(System.currentTimeMillis()) : null);
+ } catch (IOException ioe) {
+ throw new HoodieIOException("Error reading source SQL file.", ioe);
+ }
+ }
+
+ /**
+ * Configs supported.
+ */
+ private static class Config {
+ private static final String SOURCE_SQL_FILE = "hoodie.deltastreamer.source.sql.file";
+ private static final String EMIT_EPOCH_CHECKPOINT = "hoodie.deltastreamer.source.sql.checkpoint.emit";
Review Comment:
Made them public.
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