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Posted to common-dev@hadoop.apache.org by "Jothi Padmanabhan (JIRA)" <ji...@apache.org> on 2009/03/16 12:12:50 UTC
[jira] Updated: (HADOOP-5493) Shuffle copiers do not return Codecs
back to the pool at the end of shuffling
[ https://issues.apache.org/jira/browse/HADOOP-5493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jothi Padmanabhan updated HADOOP-5493:
--------------------------------------
Attachment: hadoop-5493.patch
Straight forward patch
> 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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