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Posted to common-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2018/04/24 20:50:07 UTC
[jira] [Commented] (HADOOP-14376) Memory leak when reading a
compressed file using the native library
[ https://issues.apache.org/jira/browse/HADOOP-14376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450728#comment-16450728 ]
Hudson commented on HADOOP-14376:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HADOOP-14376. Memory leak when reading a compressed file using the (xyao: rev 192f1e63180d4ddfc7fa204090a3341190f1b0df)
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/BZip2Codec.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionOutputStream.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/DecompressorStream.java
* (edit) hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/compress/TestCodec.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CodecPool.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressorStream.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionInputStream.java
> Memory leak when reading a compressed file using the native library
> -------------------------------------------------------------------
>
> Key: HADOOP-14376
> URL: https://issues.apache.org/jira/browse/HADOOP-14376
> Project: Hadoop Common
> Issue Type: Bug
> Components: common, io
> Affects Versions: 2.7.0
> Reporter: Eli Acherkan
> Assignee: Eli Acherkan
> Priority: Major
> Fix For: 2.9.0, 2.7.4, 3.0.0-alpha4, 2.8.2
>
> Attachments: Bzip2MemoryTester.java, HADOOP-14376.001.patch, HADOOP-14376.002.patch, HADOOP-14376.003.patch, HADOOP-14376.004.patch, log4j.properties
>
>
> Opening and closing a large number of bzip2-compressed input streams causes the process to be killed on OutOfMemory when using the native bzip2 library.
> Our initial analysis suggests that this can be caused by {{DecompressorStream}} overriding the {{close()}} method, and therefore skipping the line from its parent: {{CodecPool.returnDecompressor(trackedDecompressor)}}. When the decompressor object is a {{Bzip2Decompressor}}, its native {{end()}} method is never called, and the allocated memory isn't freed.
> If this analysis is correct, the simplest way to fix this bug would be to replace {{in.close()}} with {{super.close()}} in {{DecompressorStream}}.
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