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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2009) Priority support for preemption in ProportionalCapacityPreemptionPolicy
Date Wed, 13 Jan 2016 17:49:40 GMT

    [ https://issues.apache.org/jira/browse/YARN-2009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096667#comment-15096667

Sunil G commented on YARN-2009:

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
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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