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From "kyungwan nam (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8095) Allow disable non-exclusive allocation
Date Tue, 17 Apr 2018 02:32:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16440283#comment-16440283
] 

kyungwan nam commented on YARN-8095:
------------------------------------

I attached a patch, which respect the accessible-node-lables even though non-exclusive allocation.

when the capacity-scheduler configs are as follows
{code:java}
yarn.scheduler.capacity.root.batch.accessible-node-labels=label1
yarn.scheduler.capacity.root.longlived.accessible-node-labels= {code}
I’ve seen that apps submitted to root.longlived does not allocated on ‘label1’ partition. 

> Allow disable non-exclusive allocation
> --------------------------------------
>
>                 Key: YARN-8095
>                 URL: https://issues.apache.org/jira/browse/YARN-8095
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacity scheduler
>    Affects Versions: 2.8.3
>            Reporter: kyungwan nam
>            Priority: Major
>         Attachments: YARN-8095-branch-2.8.001.patch
>
>
> We have 'longlived' Queue, which is used for long-lived apps.
> In situation where default Partition resources are not enough, containers for long-lived
app can be allocated to sharable Partition.
> Since then, containers for long-lived app can be easily preempted.
> We don’t want long-lived apps to be killed abruptly.
> Currently, non-exclusive allocation can happen regardless of whether the queue is accessible
to the sharable Partition.
> It would be good if non-exclusive allocation can be disabled at queue level.



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