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https://issues.apache.org/jira/browse/YARN-10504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17248114#comment-17248114
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Wangda Tan commented on YARN-10504:
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[~zhuqi], thank you so much for your review. [~bteke] will take over the work
from me, so [~bteke] can you continue work with [~zhuqi] to address comments?
I just uploaded ver.3 patch, fixed a potential deadlock in
AutoCreatedLeafQueue.
> 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
> Attachments: YARN-10504.001.patch, YARN-10504.ver-1.patch,
> YARN-10504.ver-2.patch
>
>
> 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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