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https://issues.apache.org/jira/browse/MAPREDUCE-995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hong Tang updated MAPREDUCE-995:
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    Priority: Critical  (was: Major)

> JobHistory should handle cases where task completion events are generated 
> after job completion event
> ----------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-995
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-995
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Jothi Padmanabhan
>            Assignee: Jothi Padmanabhan
>            Priority: Critical
>         Attachments: mapred-995-v1.patch, mapred-995.patch
>
>
> It is apparently possible, in certain circumstances (failed job, for 
> example), for the job history to get task completion events after the job 
> completion event. This currently causes NPE in job history.
> Thanks Hong for identifying this issue

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