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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2920) CapacityScheduler should be notified when labels on nodes changed
Date Thu, 11 Dec 2014 21:00:14 GMT

    [ https://issues.apache.org/jira/browse/YARN-2920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14243130#comment-14243130
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Jian He commented on YARN-2920:
-------------------------------

- getUsedResources-> getUsedResourcesByLabel
- RMNodeLabelsManager constructor can pass rmContext, instead of a separate setRMDispatcher
method
- AM container is killed as well, should we not kill the am container until the max-am-percentage
is met, similar to preemption?

> CapacityScheduler should be notified when labels on nodes changed
> -----------------------------------------------------------------
>
>                 Key: YARN-2920
>                 URL: https://issues.apache.org/jira/browse/YARN-2920
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-2920.1.patch, YARN-2920.2.patch, YARN-2920.3.patch, YARN-2920.4.patch
>
>
> Currently, labels on nodes changes will only be handled by RMNodeLabelsManager, but that
is not enough upon labels on nodes changes:
> - Scheduler should be able to do take actions to running containers. (Like kill/preempt/do-nothing)
> - Used / available capacity in scheduler should be updated for future planning.
> We need add a new event to pass such updates to scheduler



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