[jira] [Created] (YARN-10559) Fair sharing intra-queue preemption support in Capacity Scheduler

["VADAGA ANANYO RAO (Jira)" <ji...@apache.org>]

VADAGA ANANYO RAO created YARN-10559:
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             Summary: 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
             Fix For: 3.1.4
         Attachments: FairOP_preemption-design_doc_v1.pdf

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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