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Posted to mapreduce-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/11/25 22:08:35 UTC

[jira] [Created] (MAPREDUCE-5652) ShuffleHandler should handle NM restarts

Karthik Kambatla created MAPREDUCE-5652:
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             Summary: ShuffleHandler should handle NM restarts
                 Key: MAPREDUCE-5652
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5652
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.2.0
            Reporter: Karthik Kambatla


ShuffleHandler should work across NM restarts and not require re-running map-tasks. On NM restart, the map outputs are cleaned up requiring re-execution of map tasks and should be avoided.



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