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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (Jira)" <ji...@apache.org> on 2021/01/11 17:22:00 UTC
[jira] [Comment Edited] (YARN-10559) Fair sharing intra-queue
preemption support in Capacity Scheduler
[ https://issues.apache.org/jira/browse/YARN-10559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17262813#comment-17262813 ]
Wangda Tan edited comment on YARN-10559 at 1/11/21, 5:21 PM:
-------------------------------------------------------------
Removed fix version of the Jira. (We should only set it when patch got committed).
was (Author: wangda):
Removed fix version of the Jira.
> 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
> Attachments: FairOP_preemption-design_doc_v1.pdf, FairOP_preemption-design_doc_v2.pdf, YARN-10559.0001.patch, YARN-10559.0002.patch, YARN-10559.0003.patch, YARN-10559.0004.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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