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https://issues.apache.org/jira/browse/MAPREDUCE-6512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235290#comment-15235290
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Hadoop QA commented on MAPREDUCE-6512:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s 
{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 3s {color} 
| {color:red} MAPREDUCE-6512 does not apply to trunk. Rebase required? Wrong 
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12770101/MAPREDUCE-6512.2.patch
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| JIRA Issue | MAPREDUCE-6512 |
| Console output | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6427/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


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> FileOutputCommitter tasks unconditionally create parent directories
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6512
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6512
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Chang Li
>            Assignee: Eric Badger
>         Attachments: MAPREDUCE-6512.2.patch, MAPREDUCE-6512.2.patch, 
> MAPREDUCE-6512.patch, MAPREDUCE-6512.patch
>
>
> If the output directory is deleted then subsequent tasks should fail. Instead 
> they blindly create the missing parent directories, leading the job to be 
> "succesful" despite potentially missing almost all of the output. Task 
> attempts should fail if the parent app attempt directory is missing when they 
> go to create their task attempt directory.



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