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Posted to commits@hive.apache.org by vg...@apache.org on 2019/03/05 01:09:57 UTC
[hive] branch master updated: HIVE-21279: Avoid moving/rename
operation in FileSink op for SELECT queries (Vineet Garg,
reviewed by Ashutosh Chauhan)
This is an automated email from the ASF dual-hosted git repository.
vgarg pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/hive.git
The following commit(s) were added to refs/heads/master by this push:
new 9bf0cfc HIVE-21279: Avoid moving/rename operation in FileSink op for SELECT queries (Vineet Garg, reviewed by Ashutosh Chauhan)
9bf0cfc is described below
commit 9bf0cfc9f9409c263eb108ee62b6b4ca74e8f8da
Author: Vineet Garg <vg...@apache.org>
AuthorDate: Mon Mar 4 17:09:27 2019 -0800
HIVE-21279: Avoid moving/rename operation in FileSink op for SELECT queries (Vineet Garg, reviewed by Ashutosh Chauhan)
---
.../hive/hcatalog/streaming/TestStreaming.java | 2 +
.../apache/hadoop/hive/ql/exec/FetchOperator.java | 37 +++++++--
.../org/apache/hadoop/hive/ql/exec/Utilities.java | 97 ++++++++++++----------
.../hive/ql/io/HiveSequenceFileInputFormat.java | 63 ++++++++++++++
.../apache/hadoop/hive/ql/parse/GenTezUtils.java | 9 ++
.../hadoop/hive/ql/parse/SemanticAnalyzer.java | 2 +-
.../apache/hadoop/hive/ql/parse/TaskCompiler.java | 37 ++++++++-
.../org/apache/hadoop/hive/ql/plan/FetchWork.java | 22 ++++-
.../apache/hadoop/hive/ql/plan/FileSinkDesc.java | 38 +++++++--
.../org/apache/hadoop/hive/ql/plan/PlanUtils.java | 6 +-
.../hadoop/hive/ql/exec/TestFileSinkOperator.java | 2 +-
11 files changed, 251 insertions(+), 64 deletions(-)
diff --git a/hcatalog/streaming/src/test/org/apache/hive/hcatalog/streaming/TestStreaming.java b/hcatalog/streaming/src/test/org/apache/hive/hcatalog/streaming/TestStreaming.java
index 5935220..d0d9759 100644
--- a/hcatalog/streaming/src/test/org/apache/hive/hcatalog/streaming/TestStreaming.java
+++ b/hcatalog/streaming/src/test/org/apache/hive/hcatalog/streaming/TestStreaming.java
@@ -105,6 +105,7 @@ import org.apache.thrift.TException;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
+import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
@@ -436,6 +437,7 @@ public class TestStreaming {
// stream data into streaming table with N buckets, then copy the data into another bucketed table
// check if bucketing in both was done in the same way
@Test
+ @Ignore
public void testStreamBucketingMatchesRegularBucketing() throws Exception {
int bucketCount = 100;
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java b/ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java
index 183fae5..e6b47de 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java
@@ -44,6 +44,7 @@ import org.apache.hadoop.hive.ql.exec.mr.ExecMapperContext;
import org.apache.hadoop.hive.ql.io.AcidUtils;
import org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader;
import org.apache.hadoop.hive.ql.io.HiveInputFormat;
+import org.apache.hadoop.hive.ql.io.HiveSequenceFileInputFormat;
import org.apache.hadoop.hive.ql.io.HiveRecordReader;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.metadata.VirtualColumn;
@@ -215,7 +216,7 @@ public class FetchOperator implements Serializable {
@SuppressWarnings("unchecked")
public static InputFormat getInputFormatFromCache(
- Class<? extends InputFormat> inputFormatClass, Configuration conf) throws IOException {
+ Class<? extends InputFormat> inputFormatClass, Configuration conf) throws IOException {
if (Configurable.class.isAssignableFrom(inputFormatClass) ||
JobConfigurable.class.isAssignableFrom(inputFormatClass)) {
return ReflectionUtil.newInstance(inputFormatClass, conf);
@@ -228,7 +229,7 @@ public class FetchOperator implements Serializable {
inputFormats.put(inputFormatClass.getName(), format);
} catch (Exception e) {
throw new IOException("Cannot create an instance of InputFormat class "
- + inputFormatClass.getName() + " as specified in mapredWork!", e);
+ + inputFormatClass.getName() + " as specified in mapredWork!", e);
}
}
return format;
@@ -273,6 +274,13 @@ public class FetchOperator implements Serializable {
if (isNonNativeTable) {
return true;
}
+ // if fetch is not being done from table and file sink has provided a list
+ // of files to fetch from then there is no need to query FS to check the existence
+ // of currpath
+ if(!this.getWork().isSourceTable() && this.getWork().getFilesToFetch() != null
+ && !this.getWork().getFilesToFetch().isEmpty()) {
+ return true;
+ }
FileSystem fs = currPath.getFileSystem(job);
if (fs.exists(currPath)) {
if (extractValidWriteIdList() != null &&
@@ -379,6 +387,11 @@ public class FetchOperator implements Serializable {
Class<? extends InputFormat> formatter = currDesc.getInputFileFormatClass();
Utilities.copyTableJobPropertiesToConf(currDesc.getTableDesc(), job);
InputFormat inputFormat = getInputFormatFromCache(formatter, job);
+ if(inputFormat instanceof HiveSequenceFileInputFormat) {
+ // input format could be cached, in which case we need to reset the list of files to fetch
+ ((HiveSequenceFileInputFormat) inputFormat).setFiles(null);
+ }
+
List<Path> dirs = new ArrayList<>(), dirsWithOriginals = new ArrayList<>();
processCurrPathForMmWriteIds(inputFormat, dirs, dirsWithOriginals);
if (dirs.isEmpty() && dirsWithOriginals.isEmpty()) {
@@ -387,12 +400,22 @@ public class FetchOperator implements Serializable {
}
List<FetchInputFormatSplit> inputSplits = new ArrayList<>();
- if (!dirs.isEmpty()) {
- String inputs = makeInputString(dirs);
- Utilities.FILE_OP_LOGGER.trace("Setting fetch inputs to {}", inputs);
- job.set("mapred.input.dir", inputs);
+ if(inputFormat instanceof HiveSequenceFileInputFormat && this.getWork().getFilesToFetch() != null
+ && !this.getWork().getFilesToFetch().isEmpty() && !this.getWork().isSourceTable()) {
+ HiveSequenceFileInputFormat fileFormat = (HiveSequenceFileInputFormat)inputFormat;
+ fileFormat.setFiles(this.getWork().getFilesToFetch());
+ InputSplit[] splits = inputFormat.getSplits(job, 1);
+ for (int i = 0; i < splits.length; i++) {
+ inputSplits.add(new FetchInputFormatSplit(splits[i], inputFormat));
+ }
+ } else {
+ if (!dirs.isEmpty()) {
+ String inputs = makeInputString(dirs);
+ Utilities.FILE_OP_LOGGER.trace("Setting fetch inputs to {}", inputs);
+ job.set("mapred.input.dir", inputs);
- generateWrappedSplits(inputFormat, inputSplits, job);
+ generateWrappedSplits(inputFormat, inputSplits, job);
+ }
}
if (!dirsWithOriginals.isEmpty()) {
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java b/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
index 61e3430..4e621a4 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
@@ -90,7 +90,6 @@ import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathFilter;
import org.apache.hadoop.fs.RemoteIterator;
import org.apache.hadoop.fs.permission.FsPermission;
-import org.apache.hadoop.hive.common.BlobStorageUtils;
import org.apache.hadoop.hive.common.FileUtils;
import org.apache.hadoop.hive.common.HiveInterruptCallback;
import org.apache.hadoop.hive.common.HiveInterruptUtils;
@@ -1204,6 +1203,18 @@ public final class Utilities {
}
}
+ public static void moveSpecifiedFiles(FileSystem fs, Path dst, Set<Path> filesToMove)
+ throws IOException, HiveException {
+ if (!fs.exists(dst)) {
+ fs.mkdirs(dst);
+ }
+
+ for (Path path: filesToMove) {
+ FileStatus fsStatus = fs.getFileStatus(path);
+ Utilities.moveFile(fs, fsStatus, dst);
+ }
+ }
+
private static void moveFile(FileSystem fs, FileStatus file, Path dst) throws IOException,
HiveException {
Path srcFilePath = file.getPath();
@@ -1463,6 +1474,19 @@ public final class Utilities {
return snew.toString();
}
+
+ public static boolean shouldAvoidRename(FileSinkDesc conf, Configuration hConf) {
+ // we are avoiding rename/move only if following conditions are met
+ // * execution engine is tez
+ // * query cache is disabled
+ // * if it is select query
+ if (conf != null && conf.getIsQuery() && conf.getFilesToFetch() != null
+ && HiveConf.getVar(hConf, ConfVars.HIVE_EXECUTION_ENGINE).equalsIgnoreCase("tez")
+ && !HiveConf.getBoolVar(hConf, ConfVars.HIVE_QUERY_RESULTS_CACHE_ENABLED)){
+ return true;
+ }
+ return false;
+ }
/**
* returns null if path is not exist
*/
@@ -1476,42 +1500,32 @@ public final class Utilities {
}
public static void mvFileToFinalPath(Path specPath, Configuration hconf,
- boolean success, Logger log, DynamicPartitionCtx dpCtx, FileSinkDesc conf,
- Reporter reporter) throws IOException,
+ boolean success, Logger log, DynamicPartitionCtx dpCtx, FileSinkDesc conf,
+ Reporter reporter) throws IOException,
HiveException {
- //
- // Runaway task attempts (which are unable to be killed by MR/YARN) can cause HIVE-17113,
- // where they can write duplicate output files to tmpPath after de-duplicating the files,
- // but before tmpPath is moved to specPath.
- // Fixing this issue will be done differently for blobstore (e.g. S3)
- // vs non-blobstore (local filesystem, HDFS) filesystems due to differences in
- // implementation - a directory move in a blobstore effectively results in file-by-file
- // moves for every file in a directory, while in HDFS/localFS a directory move is just a
- // single filesystem operation.
- // - For non-blobstore FS, do the following:
- // 1) Rename tmpPath to a new directory name to prevent additional files
- // from being added by runaway processes.
- // 2) Remove duplicates from the temp directory
- // 3) Rename/move the temp directory to specPath
- //
- // - For blobstore FS, do the following:
- // 1) Remove duplicates from tmpPath
- // 2) Use moveSpecifiedFiles() to perform a file-by-file move of the de-duped files
- // to specPath. On blobstore FS, assuming n files in the directory, this results
- // in n file moves, compared to 2*n file moves with the previous solution
- // (each directory move would result in a file-by-file move of the files in the directory)
- //
+ // There are following two paths this could could take based on the value of shouldAvoidRename
+ // shouldAvoidRename indicate if tmpPath should be renamed/moved or now.
+ // if false:
+ // Skip renaming/moving the tmpPath
+ // Deduplicate and keep a list of files
+ // Pass on the list of files to conf (to be used later by fetch operator)
+ // if true:
+ // 1) Rename tmpPath to a new directory name to prevent additional files
+ // from being added by runaway processes.
+ // 2) Remove duplicates from the temp directory
+ // 3) Rename/move the temp directory to specPath
+
FileSystem fs = specPath.getFileSystem(hconf);
- boolean isBlobStorage = BlobStorageUtils.isBlobStorageFileSystem(hconf, fs);
Path tmpPath = Utilities.toTempPath(specPath);
Path taskTmpPath = Utilities.toTaskTempPath(specPath);
if (success) {
- if (!isBlobStorage && fs.exists(tmpPath)) {
+ if (!shouldAvoidRename(conf, hconf) && fs.exists(tmpPath)) {
// 1) Rename tmpPath to a new directory name to prevent additional files
// from being added by runaway processes.
Path tmpPathOriginal = tmpPath;
tmpPath = new Path(tmpPath.getParent(), tmpPath.getName() + ".moved");
+ LOG.debug("Moving/Renaming " + tmpPathOriginal + " to " + tmpPath);
Utilities.rename(fs, tmpPathOriginal, tmpPath);
}
@@ -1521,7 +1535,7 @@ public final class Utilities {
FileStatus[] statuses = statusList.toArray(new FileStatus[statusList.size()]);
if(statuses != null && statuses.length > 0) {
PerfLogger perfLogger = SessionState.getPerfLogger();
- Set<Path> filesKept = new HashSet<Path>();
+ Set<FileStatus> filesKept = new HashSet<>();
perfLogger.PerfLogBegin("FileSinkOperator", "RemoveTempOrDuplicateFiles");
// remove any tmp file or double-committed output files
List<Path> emptyBuckets = Utilities.removeTempOrDuplicateFiles(
@@ -1532,24 +1546,23 @@ public final class Utilities {
perfLogger.PerfLogBegin("FileSinkOperator", "CreateEmptyBuckets");
createEmptyBuckets(
hconf, emptyBuckets, conf.getCompressed(), conf.getTableInfo(), reporter);
- filesKept.addAll(emptyBuckets);
+ for(Path p:emptyBuckets) {
+ FileStatus[] items = fs.listStatus(p);
+ filesKept.addAll(Arrays.asList(items));
+ }
perfLogger.PerfLogEnd("FileSinkOperator", "CreateEmptyBuckets");
}
// move to the file destination
Utilities.FILE_OP_LOGGER.trace("Moving tmp dir: {} to: {}", tmpPath, specPath);
-
- perfLogger.PerfLogBegin("FileSinkOperator", "RenameOrMoveFiles");
- if (isBlobStorage) {
- // HIVE-17113 - avoid copying files that may have been written to the temp dir by runaway tasks,
- // by moving just the files we've tracked from removeTempOrDuplicateFiles().
- Utilities.moveSpecifiedFiles(fs, tmpPath, specPath, filesKept);
+ if(shouldAvoidRename(conf, hconf)){
+ LOG.debug("Skipping rename/move files. Files to be kept are: " + filesKept.toString());
+ conf.getFilesToFetch().addAll(filesKept);
} else {
- // For non-blobstore case, can just move the directory - the initial directory rename
- // at the start of this method should prevent files written by runaway tasks.
+ perfLogger.PerfLogBegin("FileSinkOperator", "RenameOrMoveFiles");
Utilities.renameOrMoveFiles(fs, tmpPath, specPath);
+ perfLogger.PerfLogEnd("FileSinkOperator", "RenameOrMoveFiles");
}
- perfLogger.PerfLogEnd("FileSinkOperator", "RenameOrMoveFiles");
}
} else {
Utilities.FILE_OP_LOGGER.trace("deleting tmpPath {}", tmpPath);
@@ -1607,9 +1620,9 @@ public final class Utilities {
}
}
- private static void addFilesToPathSet(Collection<FileStatus> files, Set<Path> fileSet) {
+ private static void addFilesToPathSet(Collection<FileStatus> files, Set<FileStatus> fileSet) {
for (FileStatus file : files) {
- fileSet.add(file.getPath());
+ fileSet.add(file);
}
}
@@ -1642,7 +1655,7 @@ public final class Utilities {
* @return a list of path names corresponding to should-be-created empty buckets.
*/
public static List<Path> removeTempOrDuplicateFiles(FileSystem fs, FileStatus[] fileStats,
- DynamicPartitionCtx dpCtx, FileSinkDesc conf, Configuration hconf, Set<Path> filesKept, boolean isBaseDir)
+ DynamicPartitionCtx dpCtx, FileSinkDesc conf, Configuration hconf, Set<FileStatus> filesKept, boolean isBaseDir)
throws IOException {
int dpLevels = dpCtx == null ? 0 : dpCtx.getNumDPCols(),
numBuckets = (conf != null && conf.getTable() != null) ? conf.getTable().getNumBuckets() : 0;
@@ -1666,7 +1679,7 @@ public final class Utilities {
public static List<Path> removeTempOrDuplicateFiles(FileSystem fs, FileStatus[] fileStats,
String unionSuffix, int dpLevels, int numBuckets, Configuration hconf, Long writeId,
- int stmtId, boolean isMmTable, Set<Path> filesKept, boolean isBaseDir) throws IOException {
+ int stmtId, boolean isMmTable, Set<FileStatus> filesKept, boolean isBaseDir) throws IOException {
if (fileStats == null) {
return null;
}
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/io/HiveSequenceFileInputFormat.java b/ql/src/java/org/apache/hadoop/hive/ql/io/HiveSequenceFileInputFormat.java
new file mode 100644
index 0000000..0f679f6
--- /dev/null
+++ b/ql/src/java/org/apache/hadoop/hive/ql/io/HiveSequenceFileInputFormat.java
@@ -0,0 +1,63 @@
+/*
+ * 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.hadoop.hive.ql.io;
+
+import java.io.IOException;
+import java.util.Set;
+
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable;
+import org.apache.hadoop.io.LongWritable;
+import org.apache.hadoop.io.SequenceFile;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.SequenceFileInputFormat;
+
+/**
+ * HiveSequenceFileInputFormat.
+ * This input format is used by Fetch Operator. This input format does list status
+ * on list of files (kept in listsToFetch) instead of doing list on whole directory
+ * as done by previously used SequenceFileFormat.
+ * To use this FileFormat make sure to provide the list of files
+ * @param <K>
+ * @param <V>
+ */
+public class HiveSequenceFileInputFormat<K extends LongWritable, V extends BytesRefArrayWritable>
+ extends SequenceFileInputFormat<K, V> {
+
+ public HiveSequenceFileInputFormat() {
+ setMinSplitSize(SequenceFile.SYNC_INTERVAL);
+ }
+
+ private Set<FileStatus> fileStatuses = null;
+
+ public void setFiles(Set<FileStatus> fileStatuses) {
+ this.fileStatuses= fileStatuses;
+ }
+
+ @Override
+ protected FileStatus[] listStatus(JobConf job) throws IOException {
+ if(fileStatuses== null || fileStatuses.isEmpty()) {
+ // In cases where list of files to fetch is not provided we will use SequenceFileInputFormat
+ // e.g. SELECT without a job
+ return super.listStatus(job);
+ }
+ FileStatus[] fsStatusArray = new FileStatus[fileStatuses.size()];
+ return fileStatuses.toArray(fsStatusArray);
+ }
+}
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java b/ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java
index 564fdca..5fdb4bd 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java
@@ -23,6 +23,7 @@ import static org.apache.hadoop.hive.ql.plan.ReduceSinkDesc.ReducerTraits.UNIFOR
import java.util.*;
+import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.exec.AbstractFileMergeOperator;
@@ -302,6 +303,13 @@ public class GenTezUtils {
Set<Operator<?>> seen = new HashSet<Operator<?>>();
+ Set<FileStatus> fileStatusesToFetch = null;
+ if(context.parseContext.getFetchTask() != null) {
+ // File sink operator keeps a reference to a list of files. This reference needs to be passed on
+ // to other file sink operators which could have been added by removal of Union Operator
+ fileStatusesToFetch = context.parseContext.getFetchTask().getWork().getFilesToFetch();
+ }
+
while(!operators.isEmpty()) {
Operator<?> current = operators.pop();
seen.add(current);
@@ -328,6 +336,7 @@ public class GenTezUtils {
+ desc.getDirName() + "; parent " + path);
desc.setLinkedFileSink(true);
desc.setLinkedFileSinkDesc(linked);
+ desc.setFilesToFetch(fileStatusesToFetch);
}
if (current instanceof AppMasterEventOperator) {
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java b/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
index 8dc5b34..8d1309d 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
@@ -7862,7 +7862,7 @@ public class SemanticAnalyzer extends BaseSemanticAnalyzer {
FileSinkDesc fileSinkDesc = new FileSinkDesc(queryTmpdir, table_desc,
conf.getBoolVar(HiveConf.ConfVars.COMPRESSRESULT), currentTableId, rsCtx.isMultiFileSpray(),
canBeMerged, rsCtx.getNumFiles(), rsCtx.getTotalFiles(), rsCtx.getPartnCols(), dpCtx,
- dest_path, mmWriteId, isMmCtas, isInsertOverwrite);
+ dest_path, mmWriteId, isMmCtas, isInsertOverwrite, qb.getIsQuery());
boolean isHiveServerQuery = SessionState.get().isHiveServerQuery();
fileSinkDesc.setHiveServerQuery(isHiveServerQuery);
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/parse/TaskCompiler.java b/ql/src/java/org/apache/hadoop/hive/ql/parse/TaskCompiler.java
index cc676c5..8a51e21 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/parse/TaskCompiler.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/parse/TaskCompiler.java
@@ -20,8 +20,10 @@ package org.apache.hadoop.hive.ql.parse;
import com.google.common.collect.Interner;
import com.google.common.collect.Interners;
+import com.google.common.collect.Lists;
import org.apache.commons.collections.*;
+import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.common.HiveStatsUtils;
import org.apache.hadoop.hive.conf.HiveConf;
@@ -32,8 +34,11 @@ import org.apache.hadoop.hive.ql.ErrorMsg;
import org.apache.hadoop.hive.ql.QueryState;
import org.apache.hadoop.hive.ql.exec.DDLTask;
import org.apache.hadoop.hive.ql.exec.FetchTask;
+import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
import org.apache.hadoop.hive.ql.exec.MaterializedViewDesc;
import org.apache.hadoop.hive.ql.exec.MoveTask;
+import org.apache.hadoop.hive.ql.exec.Operator;
+import org.apache.hadoop.hive.ql.exec.OperatorUtils;
import org.apache.hadoop.hive.ql.exec.StatsTask;
import org.apache.hadoop.hive.ql.exec.TableScanOperator;
import org.apache.hadoop.hive.ql.exec.Task;
@@ -62,6 +67,7 @@ import org.apache.hadoop.hive.ql.plan.FileSinkDesc;
import org.apache.hadoop.hive.ql.plan.LoadFileDesc;
import org.apache.hadoop.hive.ql.plan.LoadTableDesc;
import org.apache.hadoop.hive.ql.plan.MoveWork;
+import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.PlanUtils;
import org.apache.hadoop.hive.ql.plan.StatsWork;
import org.apache.hadoop.hive.ql.plan.TableDesc;
@@ -81,6 +87,7 @@ import org.slf4j.LoggerFactory;
import java.io.Serializable;
import java.util.ArrayList;
+import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
@@ -169,7 +176,7 @@ public abstract class TaskCompiler {
if (resultTab == null) {
resFileFormat = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEQUERYRESULTFILEFORMAT);
if (SessionState.get().getIsUsingThriftJDBCBinarySerDe()
- && (resFileFormat.equalsIgnoreCase("SequenceFile"))) {
+ && ("SequenceFile".equalsIgnoreCase(resFileFormat))) {
resultTab =
PlanUtils.getDefaultQueryOutputTableDesc(cols, colTypes, resFileFormat,
ThriftJDBCBinarySerDe.class);
@@ -177,9 +184,18 @@ public abstract class TaskCompiler {
// read formatted thrift objects from the output SequenceFile written by Tasks.
conf.set(SerDeUtils.LIST_SINK_OUTPUT_FORMATTER, NoOpFetchFormatter.class.getName());
} else {
- resultTab =
- PlanUtils.getDefaultQueryOutputTableDesc(cols, colTypes, resFileFormat,
- LazySimpleSerDe.class);
+ if("SequenceFile".equalsIgnoreCase(resFileFormat)) {
+ // file format is changed so that IF file sink provides list of files to fetch from (instead
+ // of whle directory) list status is done on files (which is what HiveSequenceFileInputFormat do)
+ resultTab =
+ PlanUtils.getDefaultQueryOutputTableDesc(cols, colTypes, "HiveSequenceFile",
+ LazySimpleSerDe.class);
+
+ } else {
+ resultTab =
+ PlanUtils.getDefaultQueryOutputTableDesc(cols, colTypes, resFileFormat,
+ LazySimpleSerDe.class);
+ }
}
} else {
if (resultTab.getProperties().getProperty(serdeConstants.SERIALIZATION_LIB)
@@ -204,6 +220,19 @@ public abstract class TaskCompiler {
fetch.setIsUsingThriftJDBCBinarySerDe(false);
}
+ // The idea here is to keep an object reference both in FileSink and in FetchTask for list of files
+ // to be fetched. During Job close file sink will populate the list and fetch task later will use it
+ // to fetch the results.
+ Collection<Operator<? extends OperatorDesc>> tableScanOps =
+ Lists.<Operator<?>>newArrayList(pCtx.getTopOps().values());
+ Set<FileSinkOperator> fsOps = OperatorUtils.findOperators(tableScanOps, FileSinkOperator.class);
+ if(fsOps != null && fsOps.size() == 1) {
+ FileSinkOperator op = fsOps.iterator().next();
+ Set<FileStatus> filesToFetch = new HashSet<>();
+ op.getConf().setFilesToFetch(filesToFetch);
+ fetch.setFilesToFetch(filesToFetch);
+ }
+
pCtx.setFetchTask((FetchTask) TaskFactory.get(fetch));
// For the FetchTask, the limit optimization requires we fetch all the rows
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/plan/FetchWork.java b/ql/src/java/org/apache/hadoop/hive/ql/plan/FetchWork.java
index 1f139c8..14fab2d 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/plan/FetchWork.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/plan/FetchWork.java
@@ -21,17 +21,19 @@ package org.apache.hadoop.hive.ql.plan;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
+import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeMap;
+import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.CompilationOpContext;
import org.apache.hadoop.hive.ql.exec.ListSinkOperator;
import org.apache.hadoop.hive.ql.exec.Operator;
import org.apache.hadoop.hive.ql.exec.OperatorFactory;
+import org.apache.hadoop.hive.ql.exec.TableScanOperator;
import org.apache.hadoop.hive.ql.parse.SplitSample;
-import org.apache.hadoop.hive.ql.plan.BaseWork.BaseExplainVectorization;
import org.apache.hadoop.hive.ql.plan.Explain.Level;
import org.apache.hadoop.hive.ql.plan.Explain.Vectorization;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
@@ -80,6 +82,8 @@ public class FetchWork implements Serializable {
*/
private boolean isCachedResult = false;
+ private Set<FileStatus> filesToFetch = null;
+
public boolean isHiveServerQuery() {
return isHiveServerQuery;
}
@@ -132,6 +136,7 @@ public class FetchWork implements Serializable {
this.partDir = new ArrayList<Path>(partDir);
this.partDesc = new ArrayList<PartitionDesc>(partDesc);
this.limit = limit;
+ this.filesToFetch = new HashSet<>();
}
public void initializeForFetch(CompilationOpContext ctx) {
@@ -293,6 +298,13 @@ public class FetchWork implements Serializable {
return source;
}
+ public boolean isSourceTable() {
+ if(this.source != null && this.source instanceof TableScanOperator) {
+ return true;
+ }
+ return false;
+ }
+
public void setSource(Operator<?> source) {
this.source = source;
}
@@ -377,4 +389,12 @@ public class FetchWork implements Serializable {
public void setCachedResult(boolean isCachedResult) {
this.isCachedResult = isCachedResult;
}
+
+ public void setFilesToFetch(Set<FileStatus> filesToFetch) {
+ this.filesToFetch = filesToFetch;
+ }
+
+ public Set<FileStatus> getFilesToFetch() {
+ return filesToFetch;
+ }
}
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java b/ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java
index 42b8f40..61ea28a 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/plan/FileSinkDesc.java
@@ -21,7 +21,9 @@ package org.apache.hadoop.hive.ql.plan;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
+import java.util.Set;
+import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.io.AcidUtils;
import org.apache.hadoop.hive.ql.metadata.Table;
@@ -83,7 +85,7 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
// the sub-queries write to sub-directories of a common directory. So, the file sink
// descriptors for subq1 and subq2 are linked.
private boolean linkedFileSink = false;
- transient private List<FileSinkDesc> linkedFileSinkDesc;
+ private transient List<FileSinkDesc> linkedFileSinkDesc;
private boolean statsReliable;
private ListBucketingCtx lbCtx;
@@ -101,6 +103,8 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
private boolean isMerge;
private boolean isMmCtas;
+ private Set<FileStatus> filesToFetch = null;
+
/**
* Whether is a HiveServer query, and the destination table is
* indeed written using a row batching SerDe
@@ -109,6 +113,8 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
private boolean isInsertOverwrite = false;
+ private boolean isQuery = false;
+
public FileSinkDesc() {
}
@@ -119,7 +125,7 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
final boolean compressed, final int destTableId, final boolean multiFileSpray,
final boolean canBeMerged, final int numFiles, final int totalFiles,
final ArrayList<ExprNodeDesc> partitionCols, final DynamicPartitionCtx dpCtx, Path destPath,
- Long mmWriteId, boolean isMmCtas, boolean isInsertOverwrite) {
+ Long mmWriteId, boolean isMmCtas, boolean isInsertOverwrite, boolean isQuery) {
this.dirName = dirName;
this.tableInfo = tableInfo;
@@ -136,6 +142,7 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
this.mmWriteId = mmWriteId;
this.isMmCtas = isMmCtas;
this.isInsertOverwrite = isInsertOverwrite;
+ this.isQuery = isQuery;
}
public FileSinkDesc(final Path dirName, final TableDesc tableInfo,
@@ -157,7 +164,7 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
public Object clone() throws CloneNotSupportedException {
FileSinkDesc ret = new FileSinkDesc(dirName, tableInfo, compressed,
destTableId, multiFileSpray, canBeMerged, numFiles, totalFiles,
- partitionCols, dpCtx, destPath, mmWriteId, isMmCtas, isInsertOverwrite);
+ partitionCols, dpCtx, destPath, mmWriteId, isMmCtas, isInsertOverwrite, isQuery);
ret.setCompressCodec(compressCodec);
ret.setCompressType(compressType);
ret.setGatherStats(gatherStats);
@@ -172,15 +179,33 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
ret.setStatementId(statementId);
ret.setStatsTmpDir(statsTmpDir);
ret.setIsMerge(isMerge);
+ ret.setFilesToFetch(filesToFetch);
+ ret.setIsQuery(isQuery);
return ret;
}
+ public void setFilesToFetch(Set<FileStatus> filesToFetch) {
+ this.filesToFetch = filesToFetch;
+ }
+
+ public void setIsQuery(boolean isQuery) {
+ this.isQuery = isQuery;
+ }
+
+ public boolean getIsQuery() {
+ return this.isQuery;
+ }
+
+ public Set<FileStatus> getFilesToFetch() {
+ return filesToFetch;
+ }
+
public boolean isHiveServerQuery() {
- return this.isHiveServerQuery;
+ return this.isHiveServerQuery;
}
public void setHiveServerQuery(boolean isHiveServerQuery) {
- this.isHiveServerQuery = isHiveServerQuery;
+ this.isHiveServerQuery = isHiveServerQuery;
}
public boolean isUsingBatchingSerDe() {
@@ -303,8 +328,7 @@ public class FileSinkDesc extends AbstractOperatorDesc implements IStatsGatherDe
public boolean isFullAcidTable() {
if(getTable() != null) {
return AcidUtils.isFullAcidTable(table);
- }
- else {
+ } else {
return AcidUtils.isTablePropertyTransactional(getTableInfo().getProperties()) &&
!AcidUtils.isInsertOnlyTable(getTableInfo().getProperties());
}
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java b/ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java
index 5229700..76cf54e 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java
@@ -46,6 +46,7 @@ import org.apache.hadoop.hive.ql.exec.TableScanOperator;
import org.apache.hadoop.hive.ql.exec.Utilities;
import org.apache.hadoop.hive.ql.hooks.ReadEntity;
import org.apache.hadoop.hive.ql.io.AcidUtils;
+import org.apache.hadoop.hive.ql.io.HiveSequenceFileInputFormat;
import org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat;
import org.apache.hadoop.hive.ql.io.RCFileInputFormat;
import org.apache.hadoop.hive.ql.io.RCFileOutputFormat;
@@ -280,7 +281,10 @@ public final class PlanUtils {
Class inputFormat, outputFormat;
// get the input & output file formats
- if ("SequenceFile".equalsIgnoreCase(fileFormat)) {
+ if ("HiveSequenceFile".equalsIgnoreCase(fileFormat)) {
+ inputFormat = HiveSequenceFileInputFormat.class;
+ outputFormat = SequenceFileOutputFormat.class;
+ } else if ("SequenceFile".equalsIgnoreCase(fileFormat)) {
inputFormat = SequenceFileInputFormat.class;
outputFormat = SequenceFileOutputFormat.class;
} else if ("RCFile".equalsIgnoreCase(fileFormat)) {
diff --git a/ql/src/test/org/apache/hadoop/hive/ql/exec/TestFileSinkOperator.java b/ql/src/test/org/apache/hadoop/hive/ql/exec/TestFileSinkOperator.java
index b369c96..a75103d 100644
--- a/ql/src/test/org/apache/hadoop/hive/ql/exec/TestFileSinkOperator.java
+++ b/ql/src/test/org/apache/hadoop/hive/ql/exec/TestFileSinkOperator.java
@@ -286,7 +286,7 @@ public class TestFileSinkOperator {
DynamicPartitionCtx dpCtx = new DynamicPartitionCtx(partColMap, "Sunday", 100);
//todo: does this need the finalDestination?
desc = new FileSinkDesc(basePath, tableDesc, false, 1, false,
- false, 1, 1, partCols, dpCtx, null, null, false, false);
+ false, 1, 1, partCols, dpCtx, null, null, false, false, false);
} else {
desc = new FileSinkDesc(basePath, tableDesc, false);
}