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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15440197#comment-15440197
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Wangda Tan commented on YARN-4945:
----------------------------------

Thanks for discussion, [~eepayne]. [~sunilg].

I think normalization for inter-queue / intra-queue preemption is one of the 
top priority goal for this feature.

If you take a look at existing preemption code, it normalizes preempt-able 
resource for reserved-container-candidate-selector and fifo-candidate-selector. 
We can do the similar normalization for inter/intra-queue preemption.

Once [~sunilg] has the patch with more test cases ready, we can do some reviews 
/ tests to make sure it works.

> [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.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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