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From "Vinod Kumar Vavilapalli (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3559) MR AM can change to SUCCESS state but crash and fail to write JobHistory
Date Wed, 14 Dec 2011 23:55:31 GMT
MR AM can change to SUCCESS state but crash and fail to write JobHistory
------------------------------------------------------------------------

                 Key: MAPREDUCE-3559
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3559
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mr-am, mrv2
    Affects Versions: 0.23.0
            Reporter: Vinod Kumar Vavilapalli


In such corner cases, clients can see that the job has become successful but they cannot get
any information from JobHistoryServer. And there is no means of figuring out what happened
in the system except from the AM logs.

Ideally we should set the JobState to become SUCCESS as the last step, once everything else
is done. The code changes may be a bit complicated to achieve this, but we can investigate
and see.

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