[jira] [Comment Edited] (YARN-9116) Capacity Scheduler: add the default maximum-allocation-mb and maximum-allocation-vcores for the queues

["Aihua Xu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-9116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720919#comment-16720919 ] 

Aihua Xu edited comment on YARN-9116 at 12/14/18 4:52 AM:
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[~cheersyang] As I understand from the code, the logic to inherit from the parent is not implemented yet. We need to set such properties on the leaf queues. That is another approach I'm also thinking of. 

And also, we may not want the child queue to have larger value than the parent queue (by following the current behavior that queue value will not be larger than global level), then we may not set on the root queue, but on the children of the root queue.  


was (Author: aihuaxu):
[~cheersyang] As I understand from the code, the logic to inherit from the parent is not implemented yet. We need to set such properties on the leaf queues. That is another approach I'm also thinking of but need more work. 

> Capacity Scheduler: add the default maximum-allocation-mb and maximum-allocation-vcores for the queues
> ------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-9116
>                 URL: https://issues.apache.org/jira/browse/YARN-9116
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler
>    Affects Versions: 2.7.0
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>            Priority: Major
>
> YARN-1582 adds the support of maximum-allocation-mb configuration per queue which is targeting to support larger container features on dedicated queues (larger maximum-allocation-mb/maximum-allocation-vcores for such queue) . While to achieve larger container configuration, we need to increase the global maximum-allocation-mb/maximum-allocation-vcores (e.g. 120G/256) and then override those configurations with desired values on the queues since queue configuration can't be larger than cluster configuration. There are many queues in the system and if we forget to configure such values when adding a new queue, then such queue gets default 120G/256 which typically is not what we want.  
> We can come up with a queue-default configuration (set to normal queue configuration like 16G/8), so the leaf queues gets such values by default.



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