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https://issues.apache.org/jira/browse/YARN-4945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15391671#comment-15391671
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Sunil G commented on YARN-4945:
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Thanks [~eepayne] and [~leftnoteasy]
Yes, I was working on a POC patch for this and I could share an initial design
doc for same. It will be really great if we can collaborate. Since intra-queue
preemption may need to consider multiple factors such
- Priority
- Fairness
- User limit
my plan was to do the basic intra-queue preemption framework which can work
along (or reuse) with existing PCPP mode. To this framework, we can add
policies mentioned above. For initial POC, I was planning *priority* as I have
done an independent POC for priority preemption alone. It will be great if we
could also add policies like *user limit* , *fairness* etc.
I will share an initial document in a short while, so we could discuss more and
improve the same.
> [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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