[jira] [Updated] (YARN-7117) Capacity Scheduler: Support Auto Creation of Leaf Queues While Doing Queue Mapping

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

     [ https://issues.apache.org/jira/browse/YARN-7117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suma Shivaprasad updated YARN-7117:
-----------------------------------
    Attachment: YARN-7117.poc.patch

Attaching POC patch for auto leaf-queue creation and capacity management of auto created queues. Capacity management policy activates leaf queues which have scheduleable applications and dectivates them when no applications are pending

> Capacity Scheduler: Support Auto Creation of Leaf Queues While Doing Queue Mapping
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-7117
>                 URL: https://issues.apache.org/jira/browse/YARN-7117
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: capacity scheduler
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-7117.Capacity.Scheduler.Support.Auto.Creation.Of.Leaf.Queue.pdf, YARN-7117.poc.patch
>
>
> Currently Capacity Scheduler doesn't support auto creation of queues when doing queue mapping. We saw more and more use cases which has complex queue mapping policies configured to handle application to queues mapping. 
> The most common use case of CapacityScheduler queue mapping is to create one queue for each user/group. However update {{capacity-scheduler.xml}} and {{RMAdmin:refreshQueues}} needs to be done when new user/group onboard. One of the option to solve the problem is automatically create queues when new user/group arrives.



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