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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3006) MapReduce AM exits prematurely before completely writing and closing the JobHistory file
Date Fri, 16 Sep 2011 11:16:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated MAPREDUCE-3006:
-----------------------------------------------

    Status: Patch Available  (was: Open)

> MapReduce AM exits prematurely before completely writing and closing the JobHistory file
> ----------------------------------------------------------------------------------------
>
>                 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
>
>         Attachments: MAPREDUCE-3006-20110915.txt, MAPREDUCE-3006-20110916.txt
>
>
> [~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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