Xuan Gong created YARN-5724:

             Summary: [Umbrella] Better Queue Management in YARN
                 Key: YARN-5724
                 URL: https://issues.apache.org/jira/browse/YARN-5724
             Project: Hadoop YARN
          Issue Type: Task
            Reporter: Xuan Gong
            Assignee: Xuan Gong

This serves as an umbrella ticket for tasks related to better queue management 
in YARN.

Today's the only way to manage the queue is through admins editing 
configuration files and then issuing a refresh command. This will bring many 
inconveniences. For example, the users can not create / delete /modify their 
own queues without talking to site level admins.

Even in today's approach (configuration-based), we still have several places 
needed to improve: 
*  It is possible today to add or modify queues without restarting the RM, via 
a CS refresh. But for deleting queue, we have to restart the resourcemanager.
* When a queue is STOPPED, resources allocated to the queue can be handled 
better. Currently, they'll only be used if the other queues are setup to go 
over their capacity.

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