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From "Jonathan Hung (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6885) JobHistory event handling does not complete if handling event throws exception on shutdown
Date Sat, 06 May 2017 01:49:07 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Hung updated MAPREDUCE-6885:
-------------------------------------
    Summary: JobHistory event handling does not complete if handling event throws exception
on shutdown  (was: JobHistory event handler thread should not die if exception thrown)

> JobHistory event handling does not complete if handling event throws exception on shutdown
> ------------------------------------------------------------------------------------------
>
>                 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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