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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2004) Priority scheduling support in Capacity scheduler
Date Fri, 26 Jun 2015 20:14:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-2004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14603516#comment-14603516
] 

Wangda Tan commented on YARN-2004:
----------------------------------

Thanks for updating, [~sunilg].

A quick comment before posting others, I think most of the code to check/update application
priority can be reused by other schedulers. [~kasha], could you take a quick look at this
patch to see if it is also needed for Fair Scheduler?

> Priority scheduling support in Capacity scheduler
> -------------------------------------------------
>
>                 Key: YARN-2004
>                 URL: https://issues.apache.org/jira/browse/YARN-2004
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler
>            Reporter: Sunil G
>            Assignee: Sunil G
>         Attachments: 0001-YARN-2004.patch, 0002-YARN-2004.patch, 0003-YARN-2004.patch,
0004-YARN-2004.patch, 0005-YARN-2004.patch, 0006-YARN-2004.patch, 0007-YARN-2004.patch
>
>
> Based on the priority of the application, Capacity Scheduler should be able to give preference
to application while doing scheduling.
> Comparator<FiCaSchedulerApp> 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 App ID comparison and then TimeStamp
comparison.



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