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https://issues.apache.org/jira/browse/YARN-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14096329#comment-14096329
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Wangda Tan commented on YARN-2385:
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I think we might not need maintain completed apps CS and Fair after thought 
about it. Maintain such fields is not original responsibility designed for 
scheduler.
And for now, user can get completed container via REST API, that should be able 
to cover most use cases. 


> Adding support for listing all applications in a queue
> ------------------------------------------------------
>
>                 Key: YARN-2385
>                 URL: https://issues.apache.org/jira/browse/YARN-2385
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler, fairscheduler
>            Reporter: Subramaniam Venkatraman Krishnan
>            Assignee: Karthik Kambatla
>              Labels: abstractyarnscheduler
>
> This JIRA proposes adding a method in AbstractYarnScheduler to get all the 
> pending/active applications. Fair scheduler already supports moving a single 
> application from one queue to another. Support for the same is being added to 
> Capacity Scheduler as part of YARN-2378 and YARN-2248. So with the addition 
> of this method, we can transparently add support for moving all applications 
> from source queue to target queue and draining a queue, i.e. killing all 
> applications in a queue as proposed by YARN-2389



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