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Posted to yarn-issues@hadoop.apache.org by "Eric Payne (JIRA)" <ji...@apache.org> on 2016/04/11 18:42:25 UTC

[jira] [Commented] (YARN-2113) Add cross-user preemption within CapacityScheduler's leaf-queue

    [ https://issues.apache.org/jira/browse/YARN-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235451#comment-15235451 ] 

Eric Payne commented on YARN-2113:
----------------------------------

[~vinodkv], have you had any chance to think about the implementation for this feature (in-queue preemption). We are seeing cases where we have an ad-hoc queue that many people can use, bu long-running containers are using up many resources in that queue and keeping other users' apps from starting.

> Add cross-user preemption within CapacityScheduler's leaf-queue
> ---------------------------------------------------------------
>
>                 Key: YARN-2113
>                 URL: https://issues.apache.org/jira/browse/YARN-2113
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>
> Preemption today only works across queues and moves around resources across queues per demand and usage. We should also have user-level preemption within a queue, to balance capacity across users in a predictable manner.



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