[jira] [Comment Edited] (YARN-6769) Put the no demand queue after the most in FairSharePolicy#compare

["daemon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-6769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16079453#comment-16079453 ] 

daemon edited comment on YARN-6769 at 7/9/17 5:20 AM:
------------------------------------------------------

[~yufei] Thanks yufei. I have already upload my patch file, what is the next I should do?


was (Author: daemon):
[~yufei] Thanks yufei. I have already upload my patch file, what is the next I should do?

> Put the no demand queue after the most in FairSharePolicy#compare
> -----------------------------------------------------------------
>
>                 Key: YARN-6769
>                 URL: https://issues.apache.org/jira/browse/YARN-6769
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>    Affects Versions: 2.7.2
>            Reporter: daemon
>            Assignee: daemon
>            Priority: Minor
>             Fix For: 2.9.0
>
>         Attachments: YARN-6769.001.patch
>
>
> When use fairsheduler as RM scheduler, before assign container we will sort all queues or applications. 
> We will use FairSharePolicy#compare as the comparator， but the comparator is not so perfect.
> It have a problem as blow:
> 1. when a queue use resource over minShare(minResources), it will put behind the queue whose demand is zeor.
> so it will greater opportunity to get the resource although it do not want. It will waste schedule time when assign container
> to queue or application.
> I have fix it, and I will upload the patch to the jira.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org