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https://issues.apache.org/jira/browse/YARN-4143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Templeton updated YARN-4143:
-----------------------------------
    Attachment: YARN-4143.002.patch

Since [~adhoot] doesn't seem to be working on this one anymore, I just rebased 
it and posted a new patch.  This patch turns out to be considerably simpler 
than its predecessor because some of the cleanup that was in the original patch 
made it in already.  [~sunilg], wanna have a look?

> Optimize the check for AMContainer allocation needed by blacklisting and 
> ContainerType
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-4143
>                 URL: https://issues.apache.org/jira/browse/YARN-4143
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Anubhav Dhoot
>            Assignee: Daniel Templeton
>         Attachments: YARN-4143.001.patch, YARN-4143.002.patch
>
>
> In YARN-2005 there are checks made to determine if the allocation is for an 
> AM container. This happens in every allocate call and should be optimized 
> away since it changes only once per SchedulerApplicationAttempt



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