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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4915) Out of Memory error in reduce shuffling phase when compression is turned on
Date Thu, 18 Dec 2008 21:15:44 GMT
Out of Memory error in reduce shuffling phase when compression is turned on
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                 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


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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