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https://issues.apache.org/jira/browse/YARN-2009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096667#comment-15096667
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Sunil G commented on YARN-2009:
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Hi [~eepayne]
Thank you. I guess its more for user fairness based preemption so that if some
resource is grabbed by a user, its to be reclaimed back. Priority is another
policy to add in inqueue preemption.
I think these policies can be pluggable, and with same framework user can apply
these triggers to achieve use cases. I think along with YARN-4108, inqueue
preemption framework can be added first. And separate triggers (priority,
user-limit) can be added as pluggable entities. thoughts?
> Priority support for preemption in ProportionalCapacityPreemptionPolicy
> -----------------------------------------------------------------------
>
> Key: YARN-2009
> URL: https://issues.apache.org/jira/browse/YARN-2009
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacityscheduler
> Reporter: Devaraj K
> Assignee: Sunil G
>
> While preempting containers based on the queue ideal assignment, we may need
> to consider preempting the low priority application containers first.
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