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https://issues.apache.org/jira/browse/YARN-9766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16912581#comment-16912581
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Eric Payne commented on YARN-9766:
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bq. I have tested a sample patch simply removing the old null check and it
works fine. Will post it after verifying additional stuff.
[~tarunparimi], please be careful about removing null checks. They are often
there to keep unit tests from failing.
> 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
>
> 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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