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https://issues.apache.org/jira/browse/HADOOP-15658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16596667#comment-16596667
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Steve Loughran commented on HADOOP-15658:
-----------------------------------------
I've just moved this to being a 3.3 feature, but if we can get a patch in this
week then it'll get into 3.2. I don't have time to work on this, but I'm
willing to review & test patches from others
> Memory leak in S3AOutputStream
> ------------------------------
>
> Key: HADOOP-15658
> URL: https://issues.apache.org/jira/browse/HADOOP-15658
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.4
> Reporter: Piotr Nowojski
> Priority: Major
>
> S3AOutputStream by calling
> {{org.apache.hadoop.fs.s3a.S3AFileSystem#createTmpFileForWrite}} indirectly
> calls {{java.io.File#deleteOnExit}} and {{java.io.DeleteOnExitHook}} which
> are known for memory leaking:
>
> [https://bugs.java.com/view_bug.do?bug_id=6664633]
> [https://bugs.java.com/view_bug.do?bug_id=4872014]
>
> Apparently it was even fixed (same bug but in unrelated issue) for different
> component couple of years ago
> https://issues.apache.org/jira/browse/HADOOP-8635 .
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