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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4022) queue not remove from webpage(/cluster/scheduler) when delete queue in xxx-scheduler.xml
Date Mon, 19 Mar 2018 22:26:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-4022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16405546#comment-16405546

Yufei Gu commented on YARN-4022:

Attached the design document.

> queue not remove from webpage(/cluster/scheduler) when delete queue in xxx-scheduler.xml
> ----------------------------------------------------------------------------------------
>                 Key: YARN-4022
>                 URL: https://issues.apache.org/jira/browse/YARN-4022
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler, resourcemanager
>    Affects Versions: 2.7.1
>            Reporter: forrestchen
>            Assignee: Szilard Nemeth
>            Priority: Major
>              Labels: oct16-medium, scheduler
>         Attachments: Queue Deletion in Fair Scheduler.pdf, YARN-4022.001.patch, YARN-4022.002.patch,
YARN-4022.003.patch, YARN-4022.004.patch
> When I delete an existing queue by modify the xxx-schedule.xml, I can still see the queue
information block in webpage(/cluster/scheduler) though the 'Min Resources' items all become
to zero and have no item of 'Max Running Applications'.
> I can still submit an application to the deleted queue and the application will run using
'root.default' queue instead, but submit to an un-exist queue will cause an exception.
> My expectation is the deleted queue will not displayed in webpage and submit application
to the deleted queue will act just like the queue doesn't exist.
> PS: There's no application running in the queue I delete.
> Some related config in yarn-site.xml:
> {code}
> <property>
>         <name>yarn.scheduler.fair.user-as-default-queue</name>
>         <value>false</value>
> </property>
> <property>
>         <name>yarn.scheduler.fair.allow-undeclared-pools</name>
>         <value>false</value>
> </property>
> {code}
> a related question is here: http://stackoverflow.com/questions/26488564/hadoop-yarn-why-the-queue-cannot-be-deleted-after-i-revise-my-fair-scheduler-xm

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