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From "Sergey Murylev (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5918) LineRecordReader can return same decompressor to CodecPool multiple times
Date Mon, 09 Jun 2014 05:27:01 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Murylev updated MAPREDUCE-5918:
--------------------------------------

    Description: LineRecordReader can return 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.   (was: LineRecordReader can return 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 clause some difficult reproducible and difficult diagnosable bugs in Hadoop based programs.
)

> LineRecordReader can return 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
>            Priority: Minor
>             Fix For: trunk
>
>         Attachments: MAPREDUCE-5918.1.patch
>
>
> LineRecordReader can return 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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