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https://issues.apache.org/jira/browse/HADOOP-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066252#comment-14066252
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Hudson commented on HADOOP-10591:
---------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk #616 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/616/])
HADOOP-10591. Compression codecs must used pooled direct buffers or deallocate
direct buffers when stream is closed (cmccabe) (cmccabe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1611423)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/BZip2Codec.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionCodec.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionInputStream.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionOutputStream.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/DefaultCodec.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/GzipCodec.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/Lz4Codec.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/SnappyCodec.java
> Compression codecs must used pooled direct buffers or deallocate direct
> buffers when stream is closed
> -----------------------------------------------------------------------------------------------------
>
> Key: HADOOP-10591
> URL: https://issues.apache.org/jira/browse/HADOOP-10591
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Hari Shreedharan
> Assignee: Colin Patrick McCabe
> Fix For: 2.6.0
>
> Attachments: HADOOP-10591.001.patch, HADOOP-10591.002.patch
>
>
> Currently direct buffers allocated by compression codecs like Gzip (which
> allocates 2 direct buffers per instance) are not deallocated when the stream
> is closed. Eventually for long running processes which create a huge number
> of files, these direct buffers are left hanging till a full gc, which may or
> may not happen in a reasonable amount of time - especially if the process
> does not use a whole lot of heap.
> Either these buffers should be pooled or they should be deallocated when the
> stream is closed.
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