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https://issues.apache.org/jira/browse/YARN-10559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sunil G reassigned YARN-10559:
------------------------------

    Assignee: VADAGA ANANYO RAO

> Fair sharing intra-queue preemption support in Capacity Scheduler
> -----------------------------------------------------------------
>
>                 Key: YARN-10559
>                 URL: https://issues.apache.org/jira/browse/YARN-10559
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler
>    Affects Versions: 3.1.4
>            Reporter: VADAGA ANANYO RAO
>            Assignee: VADAGA ANANYO RAO
>            Priority: Major
>             Fix For: 3.1.4
>
>         Attachments: FairOP_preemption-design_doc_v1.pdf, 
> YARN-10559.0001.patch
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> Usecase:
> Due to the way Capacity Scheduler preemption works, If a single user submits 
> a large application to a queue (using 100% of resources), that job will not 
> be preempted by future applications from the same user within the same queue. 
> This implies that the later applications will be forced to wait for 
> completion of the long running application. This prevents multiple long 
> running, large, applications from running concurrently.
> Support fair sharing among apps while preempting applications from same queue.



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