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From "Ashwin Shankar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3111) Fix ratio problem on FairScheduler page
Date Fri, 27 Feb 2015 19:58:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14340720#comment-14340720
] 

Ashwin Shankar commented on YARN-3111:
--------------------------------------

Hey [~kasha],
When you get a chance, can you please review this ?
Due to the spec of our instance type and our default container memory settings, we generally
have lot of memory left after all the vcores are taken, and the scheduler page incorrectly
shows that there is still room in the cluster even though there is none, which is misleading
users.

> Fix ratio problem on FairScheduler page
> ---------------------------------------
>
>                 Key: YARN-3111
>                 URL: https://issues.apache.org/jira/browse/YARN-3111
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>    Affects Versions: 2.6.0
>            Reporter: Peng Zhang
>            Assignee: Peng Zhang
>            Priority: Minor
>             Fix For: 2.7.0
>
>         Attachments: YARN-3111.1.patch, YARN-3111.png
>
>
> Found 3 problems on FairScheduler page:
> 1. Only compute memory for ratio even when queue schedulingPolicy is DRF.
> 2. When min resources is configured larger than real resources, the steady fair share
ratio is so long that it is out the page.
> 3. When cluster resources is 0(no nodemanager start), ratio is displayed as "NaN% used"
> Attached image shows the snapshot of above problems. 



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