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Posted to yarn-issues@hadoop.apache.org by "Nathan Roberts (JIRA)" <ji...@apache.org> on 2014/06/11 23:02:04 UTC

[jira] [Commented] (YARN-2056) Disable preemption at Queue level

    [ https://issues.apache.org/jira/browse/YARN-2056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14028392#comment-14028392 ] 

Nathan Roberts commented on YARN-2056:
--------------------------------------

Could this be accomplished by changing {{yarn.resourcemanager.monitor.capacity.preemption.max_ignored_over_capacity}} to be a per-queue value. Then for queues that we don't ever want to be preempted, we set {{max_ignored_over_capacity == (max_capacity/capacity)-1.0}}?

Vinod, the motivation from my perspective is that we need a way to gradually phase in preemption and so being able to configure the queues in a way that prevents and/or gradually allows preemption seems desirable.

> Disable preemption at Queue level
> ---------------------------------
>
>                 Key: YARN-2056
>                 URL: https://issues.apache.org/jira/browse/YARN-2056
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Mayank Bansal
>
> We need to be able to disable preemption at individual queue level



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