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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15438052#comment-15438052
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Wangda Tan commented on YARN-4945:
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Thanks [~eepayne] for providing the detail use case requirements.
I haven't looked at contents in PDF yet, but for the overall requirements make
sense, and they look like the most important use cases for intra-queue
preemptions to me.
With existing framework added by [~sunilg], we should be able to support
different scheduling policies (like fair, fifo, priority, etc.) by adding
different preemptable-resource-calculator (decide ideal/preemptable resource
for apps), and different preemptable-candidate-selector (decide containers to
preempt).
> [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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