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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3273) Improve web UI to facilitate scheduling analysis and debugging
Date Mon, 09 Mar 2015 22:41:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-3273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353787#comment-14353787
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Jian He commented on YARN-3273:
-------------------------------

looks good, to distinguish scenarios like one user belongs to two queues, we probably need
to add a separate queue tag too ? 
For the "Active Users:" field in CS queue page, it may also be useful to change that to be
simply user names which links back to the user page with filtered user name. Just for implementation
reference, the existing Node Labels page has some similar functionalities.
thanks again for taking on this, Rohith !  

> Improve web UI to facilitate scheduling analysis and debugging
> --------------------------------------------------------------
>
>                 Key: YARN-3273
>                 URL: https://issues.apache.org/jira/browse/YARN-3273
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Jian He
>            Assignee: Rohith
>         Attachments: 0001-YARN-3273-v1.patch, YARN-3273-am-resource-used-AND-User-limit.PNG,
YARN-3273-application-headroom.PNG
>
>
> Job may be stuck for reasons such as:
> - hitting queue capacity 
> - hitting user-limit, 
> - hitting AM-resource-percentage 
> The  first queueCapacity is already shown on the UI.
> We may surface things like:
> - what is user's current usage and user-limit; 
> - what is the AM resource usage and limit;
> - what is the application's current HeadRoom;
>  



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