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From "Jonathan Hung (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6885) JobHistory event handler thread should not die if exception thrown
Date Sat, 06 May 2017 00:34:04 GMT
Jonathan Hung created MAPREDUCE-6885:
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             Summary: JobHistory event handler thread should not die if exception thrown
                 Key: MAPREDUCE-6885
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6885
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Jonathan Hung


If eventHandlingThread handles an event which causes it to throw an exception (e.g. if it
is unable to flush an event to HDFS), the thread dies. This thread is responsible for moving
job history files to mapreduce.jobhistory.done-dir, if an exception is thrown the files will
not be moved here, which is bad.

We should catch these exceptions so that the thread can still move these files when the job
is complete.



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