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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2016/12/09 23:27:58 UTC
[jira] [Assigned] (YARN-4752) [Umbrella] FairScheduler: Improve
preemption
[ https://issues.apache.org/jira/browse/YARN-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Kambatla reassigned YARN-4752:
--------------------------------------
Assignee: Karthik Kambatla
> [Umbrella] FairScheduler: Improve preemption
> --------------------------------------------
>
> Key: YARN-4752
> URL: https://issues.apache.org/jira/browse/YARN-4752
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 2.8.0
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: YARN-4752.FairSchedulerPreemptionOverhaul.pdf, yarn-4752-1.patch, yarn-4752.2.patch, yarn-4752.3.patch, yarn-4752.4.patch, yarn-4752.4.patch
>
>
> A number of issues have been reported with respect to preemption in FairScheduler along the lines of:
> # FairScheduler preempts resources from nodes even if the resultant free resources cannot fit the incoming request.
> # Preemption doesn't preempt from sibling queues
> # Preemption doesn't preempt from sibling apps under the same queue that is over its fairshare
> # ...
> Filing this umbrella JIRA to group all the issues together and think of a comprehensive solution.
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