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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3769) Preemption occurring unnecessarily because preemption doesn't consider user limit
Date Thu, 04 Jun 2015 22:01:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-3769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573667#comment-14573667
] 

Wangda Tan commented on YARN-3769:
----------------------------------

[~eepayne], Exactly.

> Preemption occurring unnecessarily because preemption doesn't consider user limit
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-3769
>                 URL: https://issues.apache.org/jira/browse/YARN-3769
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 2.6.0, 2.7.0, 2.8.0
>            Reporter: Eric Payne
>            Assignee: Eric Payne
>
> We are seeing the preemption monitor preempting containers from queue A and then seeing
the capacity scheduler giving them immediately back to queue A. This happens quite often and
causes a lot of churn.



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