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Posted to yarn-issues@hadoop.apache.org by "Wilfred Spiegelenburg (Jira)" <ji...@apache.org> on 2020/02/19 09:12:00 UTC
[jira] [Comment Edited] (YARN-10124) Remove restriction of
ParentQueue capacity zero when childCapacities > 0
[ https://issues.apache.org/jira/browse/YARN-10124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17039817#comment-17039817 ]
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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