[jira] [Commented] (YARN-9766) YARN CapacityScheduler QueueMetrics has missing metrics for parent queues having same name

["Tarun Parimi (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-9766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16927618#comment-16927618 ] 

Tarun Parimi commented on YARN-9766:
------------------------------------

[~sunilg], [~eepayne], [~Prabhu Joseph]  Please take a look at the patch and review it when possible. The change has been tested manually and I don't see any valid issues with existing unit tests or the added unit tests.

> YARN CapacityScheduler QueueMetrics has missing metrics for parent queues having same name
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-9766
>                 URL: https://issues.apache.org/jira/browse/YARN-9766
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Tarun Parimi
>            Assignee: Tarun Parimi
>            Priority: Major
>         Attachments: YARN-9766.001.patch
>
>
> In Capacity Scheduler, we enforce Leaf Queues to have unique names. But it is not the case for Parent Queues. For example, we can have the below queue hierarchy, where "b" is the queue name for two different queue paths root.a.b and root.a.d.b . Since it is not a leaf queue this configuration works and apps run fine in the leaf queues 'c'  and 'e'.
>  * root
>  ** a
>  *** b
>  **** c
>  *** d
>  **** b
>  ***** e
> But the jmx metrics does not show the metrics for the parent queue "root.a.d.b" . We can see metrics only for "root.a.b" queue.
>  



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