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https://issues.apache.org/jira/browse/YARN-2413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14094922#comment-14094922
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Allen Wittenauer edited comment on YARN-2413 at 8/12/14 11:59 PM:
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>From an operations perspective, this is not expected behavior at all.  Worse,  
>it appears the only place this is truly documented is in 
>capacity-scheduler.xml .


was (Author: aw):
>From an operations perspective, this is not expected behavior at all.  Worse,  
>it appears the only place this is documented is truly documented is in 
>capacity-scheduler.xml .

> capacity scheduler will overallocate vcores
> -------------------------------------------
>
>                 Key: YARN-2413
>                 URL: https://issues.apache.org/jira/browse/YARN-2413
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Allen Wittenauer
>            Priority: Critical
>
> It doesn't appear that the capacity scheduler is properly allocating vcores 
> when making scheduling decisions, which may result in overallocation of CPU 
> resources.



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