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https://issues.apache.org/jira/browse/HADOOP-16570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16944731#comment-16944731
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Hudson commented on HADOOP-16570:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17480 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17480/])
HADOOP-16570. S3A committers encounter scale issues. (stevel: rev
6574f27fa348542411bff888b184cd7ce34e5d9e)
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/TestStagingPartitionedTaskCommit.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitConstants.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/files/SuccessData.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/TestStagingDirectoryOutputCommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/PartitionedStagingCommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/StagingTestBase.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/integration/ITestS3ACommitterMRJob.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/S3ATestUtils.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/TestTasks.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/DirectoryStagingCommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AClosedFS.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/AbstractITCommitProtocol.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/TestStagingPartitionedJobCommit.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/magic/MagicS3GuardCommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/TestStagingCommitter.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AInstrumentation.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitterFactory.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
* (add)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/staging/TestDirectoryCommitterScale.java
> S3A committers leak threads/raises OOM on job/task commit at scale
> ------------------------------------------------------------------
>
> Key: HADOOP-16570
> URL: https://issues.apache.org/jira/browse/HADOOP-16570
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.2.0, 3.1.2
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Fix For: 3.3.0
>
>
> The fixed size ThreadPool created in AbstractS3ACommitter doesn't get cleaned
> up at EOL; as a result you leak the no. of threads set in
> "fs.s3a.committer.threads"
> Not visible in MR/distcp jobs, but ultimately causes OOM on Spark
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