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MAPREDUCE-3684. LocalDistributedCacheManager does not shut down its thread pool. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1232981 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White 2012-01-18 18:20:13 +00:00
parent d737c323a6
commit 8b2f6909ec
3 changed files with 58 additions and 37 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -509,6 +509,9 @@ Release 0.23.1 - Unreleased
MAPREDUCE-3669. Allow clients to talk to MR HistoryServer using both
delegation tokens and kerberos. (mahadev via acmurthy)
MAPREDUCE-3684. LocalDistributedCacheManager does not shut down its thread
pool (tomwhite)
Release 0.23.0 - 2011-11-01
INCOMPATIBLE CHANGES

18
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapred/LocalDistributedCacheManager.java
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@ -39,6 +39,7 @@ import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ThreadFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@ -57,6 +58,8 @@ import org.apache.hadoop.yarn.api.records.LocalResourceType;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.apache.hadoop.yarn.util.FSDownload;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
/**
* A helper class for managing the distributed cache for {@link LocalJobRunner}.
*/
@ -111,9 +114,14 @@ class LocalDistributedCacheManager {
FileContext localFSFileContext = FileContext.getLocalFSFileContext();
UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
Map<LocalResource, Future<Path>> resourcesToPaths = Maps.newHashMap();
ExecutorService exec = Executors.newCachedThreadPool();
ExecutorService exec = null;
try {
ThreadFactory tf = new ThreadFactoryBuilder()
.setNameFormat("LocalDistributedCacheManager Downloader #%d")
.build();
exec = Executors.newCachedThreadPool(tf);
Path destPath = localDirAllocator.getLocalPathForWrite(".", conf);
Map<LocalResource, Future<Path>> resourcesToPaths = Maps.newHashMap();
for (LocalResource resource : localResources.values()) {
Callable<Path> download = new FSDownload(localFSFileContext, ugi, conf,
destPath, resource, new Random());
@ -147,7 +155,11 @@ class LocalDistributedCacheManager {
localClasspaths.add(path.toUri().getPath().toString());
}
}
} finally {
if (exec != null) {
exec.shutdown();
}
}
// Update the configuration object with localized data.
if (!localArchives.isEmpty()) {
conf.set(MRJobConfig.CACHE_LOCALARCHIVES, StringUtils

8
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapred/LocalJobRunner.java
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@ -28,6 +28,7 @@ import java.util.Map;
import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
@ -61,6 +62,8 @@ import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.util.ReflectionUtils;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
/** Implements MapReduce locally, in-process, for debugging. */
@InterfaceAudience.Private
@InterfaceStability.Unstable
@ -302,7 +305,10 @@ public class LocalJobRunner implements ClientProtocol {
LOG.debug("Map tasks to process: " + this.numMapTasks);
// Create a new executor service to drain the work queue.
ExecutorService executor = Executors.newFixedThreadPool(maxMapThreads);
ThreadFactory tf = new ThreadFactoryBuilder()
.setNameFormat("LocalJobRunner Map Task Executor #%d")
.build();
ExecutorService executor = Executors.newFixedThreadPool(maxMapThreads, tf);
return executor;
}