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https://issues.apache.org/jira/browse/YARN-2004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612159#comment-14612159
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Sunil G commented on YARN-2004:
-------------------------------

Thank you [~jianhe] for the comments.

- bq.Or this method has more responsibility than that ?
Yes. We are planning to check for acl's (priority acls) in this method. I was 
planning to handle that in separate ticket.
{noformat}
yarn.scheduler.capacity.root.<queue_name>.<priority>.acl=user1,user2
{noformat}
This config will be in queue level, and we could restrict certain users to use 
some high priority. So only a certain  users can use high priority, and other 
wont be able to submit application in that priority. This acl check was 
planning to add into  {{authenticateApplicationPriority}}.
- bq.we may merge the two into a single patch ?
I will merge these patches together and will upload into YARN-2003. 

> 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, 0008-YARN-2004.patch, 
> 0009-YARN-2004.patch, 0010-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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