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Posted to yarn-issues@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2012/10/22 22:28:12 UTC

[jira] [Assigned] (YARN-180) Capacity scheduler - containers that get reserved create container token to early

     [ https://issues.apache.org/jira/browse/YARN-180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy reassigned YARN-180:
----------------------------------

    Assignee: Arun C Murthy
    
> 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
>
> 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 will most likely have expired.

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