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https://issues.apache.org/jira/browse/MAPREDUCE-4901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Joseph Evans updated MAPREDUCE-4901:
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    Attachment: MR-4901-trunk.txt

This patch should also work on branch-2.  On branch-0.23 HADOOP-9196 will need 
to be applied first, but after that it works just fine there too.
                
> JobHistoryEventHandler errors should be fatal
> ---------------------------------------------
>
>                 Key: MAPREDUCE-4901
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4901
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 2.0.0-alpha
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>         Attachments: MR-4901-trunk.txt
>
>
> To be able to truly fix issues like MAPREDUCE-4819 and MAPREDUCE-4832, we 
> need a 2 phase commit where a subsequent AM can be sure that at a specific 
> point in time it knows exactly if any tasks/jobs are committing.  The job 
> history log is already used for similar functionality so we would like to 
> reuse this, but we need to be sure that errors while writing out to the job 
> history log are now fatal.

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