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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15392286#comment-15392286
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Sunil G commented on YARN-4945:
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Thanks [~eepayne]
bq.I would like to separate out the sub-feature pieces of in-queue preemption
as much as possible.
bq. I think that in-queue preemption based on user limit needs to be very
dependent on app priority and vice-versa.
Yes. I have almost completed poc code for *ideal resource allocation* within a
queue. This is considering priority of apps alone. Yes, we have to have
user-limit etc. As we progress, we can add that to strengthen the intra-queue
preemption for more accurate results.
I could share draft POC patch, but I thought its better if I share the doc
first. I will share it in a day. we could have more discussion to finalize the
same. POC patch was done to see how well we can reuse and fit OR make use of
the changes done by [~leftnoteasy] for a better preemption framework.
> [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
>
> 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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