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https://issues.apache.org/jira/browse/MAPREDUCE-5918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14207888#comment-14207888
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Hadoop QA commented on MAPREDUCE-5918:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  
http://issues.apache.org/jira/secure/attachment/12681043/MAPREDUCE-5918.3.patch
  against trunk revision 53f64ee.

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new 
or modified test files.

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to 
fail.

Console output: 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5012//console

This message is automatically generated.

> LineRecordReader can return the same decompressor to CodecPool multiple times
> -----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5918
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5918
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Sergey Murylev
>            Assignee: Sergey Murylev
>             Fix For: trunk
>
>         Attachments: MAPREDUCE-5918.1.patch, MAPREDUCE-5918.2.patch, 
> MAPREDUCE-5918.3.patch
>
>
> LineRecordReader can return the same decompressor to CodecPool multiple times 
> if method close() called multiple times. In this case CodecPool doesn't 
> guarantee that it always return different decompressors. This issue can cause 
> some difficult reproducible and difficult diagnosable bugs in Hadoop based 
> programs. 



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