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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2666) MR-279: Need to retrieve shuffle port number on AplicationMaster restart
Date Fri, 08 Jul 2011 20:46:16 GMT
MR-279: Need to retrieve shuffle port number on AplicationMaster restart
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                 Key: MAPREDUCE-2666
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2666
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans
             Fix For: 0.23.0


MAPREDUCE-2652 allows ShuffleHandler to return the port it is operating on.  In the case of
an ApplicationMaster crash where it needs to be restarted that information is lost.  We either
need to re-query it from each of the NodeManagers or to persist it to the JobHistory logs
and retrieve it again.  The job history logs is probably the simpler solution.

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