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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (Jira)" <ji...@apache.org> on 2020/12/01 01:09:00 UTC
[jira] [Commented] (YARN-10504) Implement weight mode in Capacity
Scheduler
[ https://issues.apache.org/jira/browse/YARN-10504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17241173#comment-17241173 ]
Wangda Tan commented on YARN-10504:
-----------------------------------
[~epayne], This is a feature to allow flexibly add and remove queues. You can take a look at problem statement of [https://docs.google.com/document/d/1r_UU1OXCjvvxudNMH-KGwK0gwyt7swUSn62eKQXQOAg/edit#heading=h.ufvkgjf6tzq2]
And if you can review it and let us know if you have any other questions that will be greatly helpful!
> Implement weight mode in Capacity Scheduler
> -------------------------------------------
>
> Key: YARN-10504
> URL: https://issues.apache.org/jira/browse/YARN-10504
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Benjamin Teke
> Assignee: Benjamin Teke
> Priority: Major
>
> To allow the possibility to flexibly create queues in Capacity Scheduler a weight mode should be introduced. The existing \{{capacity }}property should be used with a different syntax, i.e:
> root.users.capacity = (1.0) or ~1.0 or ^1.0 or @1.0
> root.users.capacity = 1.0w
> root.users.capacity = w:1.0
> Weight support should not impact the existing functionality.
>
> The new functionality should:
> * accept and validate the new weight values
> * enforce a singular mode on the whole queue tree
> * (re)calculate the relative (percentage-based) capacities based on the weights during launch and every time the queue structure changes
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