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https://issues.apache.org/jira/browse/MAPREDUCE-4901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14538233#comment-14538233
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Hadoop QA commented on MAPREDUCE-4901:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | patch |   0m  1s | The patch file was not named 
according to hadoop's naming conventions. Please see 
https://wiki.apache.org/hadoop/HowToContribute for instructions. |
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply 
the patch during dryrun. |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12562403/MR-4901-trunk.txt |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / b9cebfc |
| Console output | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5702/console |


This message was automatically generated.

> 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
>              Labels: BB2015-05-TBR
>         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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