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https://issues.apache.org/jira/browse/YARN-9780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16964704#comment-16964704
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Prabhu Joseph commented on YARN-9780:
-------------------------------------
[~snemeth] Thanks for reviewing. That condition is still true - Queues can be
deleted only after it is Stopped.
This patch provides a way in Mutation Api to combine both Stop and Delete in a
single call. But the existing behavior is not changed.
1. Without Mutation API, queue has to be stopped using refresh option and only
then can be removed.
2. With Mutation API, user can perform delete in a separate call but the stop
has to be done before that for delete to work.
> SchedulerConf Mutation API does not Allow Stop and Remove Queue in a single
> call
> --------------------------------------------------------------------------------
>
> Key: YARN-9780
> URL: https://issues.apache.org/jira/browse/YARN-9780
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacity scheduler
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-9780-001.patch, YARN-9780-002.patch,
> YARN-9780-003.patch, YARN-9780-004.patch
>
>
> SchedulerConf Mutation API does not Allow Stop and Remove Queue in a single
> call. The queue has to be stopped before removing and so it is useful to
> allow both Stop and remove queue in a single call.
> *Repro:*
> {code:java}
> Capacity-Scheduler.xml:
> yarn.scheduler.capacity.root.queues = new, default, dummy
> yarn.scheduler.capacity.root.default.capacity = 60
> yarn.scheduler.capacity.root.dummy.capacity = 30
> yarn.scheduler.capacity.root.new.capacity = 10
> curl -v -X PUT -d @abc.xml -H "Content-type: application/xml"
> 'http://<RM_IP>:8088/ws/v1/cluster/scheduler-conf'
> abc.xml
> <sched-conf>
> <update-queue>
> <queue-name>root.default</queue-name>
> <params>
> <entry>
> <key>capacity</key>
> <value>70</value>
> </entry>
> </params>
> </update-queue>
> <update-queue>
> <queue-name>root.new</queue-name>
> <params>
> <entry>
> <key>state</key>
> <value>STOPPED</value>
> </entry>
> </params>
> </update-queue>
> <remove-queue>root.new</remove-queue>
> </sched-conf>
> {code}
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