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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-180) Capacity scheduler - containers that get reserved create container token to early
Date Tue, 23 Oct 2012 19:19:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482591#comment-13482591
] 

Robert Joseph Evans commented on YARN-180:
------------------------------------------

Oh I noticed that the containerToken is never assigned anyways.  I will fix that too.
                
> Capacity scheduler - containers that get reserved create container token to early
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-180
>                 URL: https://issues.apache.org/jira/browse/YARN-180
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 0.23.3
>            Reporter: Thomas Graves
>            Assignee: Arun C Murthy
>            Priority: Critical
>             Fix For: 2.0.3-alpha, 0.23.5
>
>         Attachments: YARN-180.patch, YARN-180.patch
>
>
> The capacity scheduler has the ability to 'reserve' containers.  Unfortunately before
it decides that it goes to reserved rather then assigned, the Container object is created
which creates a container token that expires in roughly 10 minutes by default.  
> This means that by the time the NM frees up enough space on that node for the container
to move to assigned the container token may have expired.

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