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https://issues.apache.org/jira/browse/YARN-10124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17039817#comment-17039817
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Wilfred Spiegelenburg edited comment on YARN-10124 at 2/19/20 9:11 AM:
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When you set a parent queue to a 0 capacity could that not leave the apps in
the leaf queues below it in a state that they are not scheduled?
How does it affect the capacity calculation, i.e. is the queue now always below
or above its (hard)limits?
I am not against removing the limitation but I am thinking about the side
effects it could have.
was (Author: wilfreds):
When you set a parent queue to a 0 capacity could that not leave the apps in
the leaf queues below it in a state that they are not scheduled?
How does it affect the capacity calculation, i.e. is the queue now always below
or above its (hard)limits?
> Remove restriction of ParentQueue capacity zero when childCapacities > 0
> ------------------------------------------------------------------------
>
> Key: YARN-10124
> URL: https://issues.apache.org/jira/browse/YARN-10124
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-10124-001.patch
>
>
> ParentQueue capacity cannot be set to 0 when child capacities > 0. To disable
> a parent queue temporarily, user can only STOP the queue but the capacity of
> the queue cannot be used for other queues. Allowing 0 capacity for parent
> queue will allow user to use the capacity for other queues and also to retain
> the child queue capacity values. (else user has to set all child queue
> capacities to 0)
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