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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-4915) Out of Memory error in reduce shuffling phase when compression is turned on
Date Thu, 18 Dec 2008 22:53:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zheng Shao resolved HADOOP-4915.
--------------------------------

       Resolution: Duplicate
    Fix Version/s: 0.18.0

Duplicate of https://issues.apache.org/jira/browse/HADOOP-2095

> Out of Memory error in reduce shuffling phase when compression is turned on
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-4915
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4915
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.17.2
>            Reporter: Zheng Shao
>             Fix For: 0.18.0
>
>
> mapred.compress.map.output is set to true, and the job has 6860 mappers and 300 reducers.
> Several reducers failed because:out of memory error in the shuffling phase.

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