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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-4945) [Umbrella] Capacity Scheduler Preemption Within a queue
Date Fri, 16 Sep 2016 18:51:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15497081#comment-15497081
] 

Sunil G edited comment on YARN-4945 at 9/16/16 6:50 PM:
--------------------------------------------------------

Thanks [~eepayne],

I think the scenario makes sense to me. And as earlier discussed, an ideal order of "preemption
to help for better resource distribution" can be in follow order *InterQueue => FiFoIntraQueue
(User-limit => priority) => etc* . So within a queue, user-limit will have the first
say. And i think it can be incorporated to existing design with minimal refactoring.




was (Author: sunilg):
Thanks [~eepayne],

I think the scenario makes sense to me. And as earlier discussed, an ideal order of "preemption
to help for better resource distribution" can be in follow order {{InterQueue => FiFoIntraQueue
(User-limit => priority) => etc }} . So within a queue, user-limit will have the first
say. And i think it can be incorporated to existing design with minimal refactoring.



> [Umbrella] Capacity Scheduler Preemption Within a queue
> -------------------------------------------------------
>
>                 Key: YARN-4945
>                 URL: https://issues.apache.org/jira/browse/YARN-4945
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Wangda Tan
>         Attachments: Intra-Queue Preemption Use Cases.pdf, IntraQueuepreemption-CapacityScheduler
(Design).pdf, YARN-2009-wip.2.patch, YARN-2009-wip.patch, YARN-2009-wip.v3.patch, YARN-2009.v0.patch,
YARN-2009.v1.patch, YARN-2009.v2.patch, YARN-2009.v3.patch
>
>
> This is umbrella ticket to track efforts of preemption within a queue to support features
like:
> YARN-2009. YARN-2113. YARN-4781.



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