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Posted to mapreduce-dev@hadoop.apache.org by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org> on 2011/09/14 13:09:10 UTC

[jira] [Created] (MAPREDUCE-3006) MapReduce AM exits prematurely before completely writing and closing the JobHistory file

MapReduce AM exits prematurely before completely writing and closing the JobHistory file
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                 Key: MAPREDUCE-3006
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3006
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: applicationmaster, mrv2
    Affects Versions: 0.23.0
            Reporter: Vinod Kumar Vavilapalli
            Assignee: Vinod Kumar Vavilapalli
             Fix For: 0.23.0


[~Karams] was executing a sleep job with 100,000 tasks on a 350 node cluster to test MR AM's scalability and ran into this. The job ran successfully but the history was not available.

I debugged around and figured that the job is finishing prematurely before the JobHistory is written. In most of the cases, we don't see this bug as we have a 5 seconds sleep in AM towards the end.

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