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Posted to yarn-issues@hadoop.apache.org by "Dillon Zhang (JIRA)" <ji...@apache.org> on 2018/07/05 07:47:00 UTC
[jira] [Updated] (YARN-8495) Priority scheduling support in
FairShare scheduler
[ https://issues.apache.org/jira/browse/YARN-8495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dillon Zhang updated YARN-8495:
-------------------------------
Attachment: YARN-8495.001.patch
> Priority scheduling support in FairShare scheduler
> --------------------------------------------------
>
> Key: YARN-8495
> URL: https://issues.apache.org/jira/browse/YARN-8495
> Project: Hadoop YARN
> Issue Type: Wish
> Components: fairscheduler
> Reporter: Dillon Zhang
> Priority: Major
> Attachments: YARN-8495.001.patch
>
>
> In production environment, priority scheduling is of vital importance to us as we have lots of queues for different departments, then create applications but some of them are not so important as others, so we must guarantee the import ones to supply service.
> Based on the priority of the application, Fair Scheduler should be able to give preference to application while scheduling.
> Comparator<FairShareComparator> applicationComparator can be changed as below.
> 1. Check for Application priority. If priority is available, then return the highest priority job.
> 2. Otherwise continue with existing logic such as Fair Share comparison and App ID comparison and then TimeStamp comparison.
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