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https://issues.apache.org/jira/browse/MAPREDUCE-2258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated MAPREDUCE-2258:
---------------------------------
Resolution: Fixed
Fix Version/s: 0.23.0
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
I just committed this. Thanks, Todd!
> IFile reader closes stream and compressor in wrong order
> --------------------------------------------------------
>
> Key: MAPREDUCE-2258
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2258
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: task
> Affects Versions: 0.20.4, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: mapreduce-2258.txt
>
>
> In IFile.Reader.close(), we return the decompressor to the pool and then call
> close() on the input stream. This is backwards and causes a rare race in the
> case of LzopCodec, since LzopInputStream makes a few calls on the
> decompressor object inside close(). If another thread pulls the decompressor
> out of the pool and starts to use it in the meantime, the first thread's
> close() will cause the second thread to potentially miss pieces of data.
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