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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5493) Shuffle copiers do not return Codecs back to the pool at the end of shuffling
Date Wed, 18 Mar 2009 17:21:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683093#action_12683093
] 

Hudson commented on HADOOP-5493:
--------------------------------

Integrated in Hadoop-trunk #783 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/783/])
    

> Shuffle copiers do not return Codecs back to the pool at the end of shuffling
> -----------------------------------------------------------------------------
>
>                 Key: HADOOP-5493
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5493
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Devaraj Das
>            Assignee: Jothi Padmanabhan
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: hadoop-5493.patch
>
>
> At the end of shuffle, the copiers should return back the codecs to the pool. This doesn't
happen and can potentially lead to a lot of memory leak on the reduce task (depending on how
many shuffle copiers there are).

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