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https://issues.apache.org/jira/browse/YARN-11412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18033379#comment-18033379
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ASF GitHub Bot commented on YARN-11412:
---------------------------------------
github-actions[bot] commented on PR #5318:
URL: https://github.com/apache/hadoop/pull/5318#issuecomment-3453911182
We're closing this stale PR because it has been open for 100 days with no
activity. This isn't a judgement on the merit of the PR in any way. It's just a
way of keeping the PR queue manageable.
If you feel like this was a mistake, or you would like to continue working
on it, please feel free to re-open it and ask for a committer to remove the
stale tag and review again.
Thanks all for your contribution.
> Create a Concurrent Users Manager to enable thread safe concurrent resource
> usage tracking of user
> --------------------------------------------------------------------------------------------------
>
> Key: YARN-11412
> URL: https://issues.apache.org/jira/browse/YARN-11412
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Krishan Goyal
> Assignee: Krishan Goyal
> Priority: Major
> Labels: pull-request-available
>
> We will build ConcurrentUsersManager whose objective is similar to
> UsersManager but whose APIs provide better concurrent performance with
> different class invariants
>
> Both ConcurrentUsersManager & UsersManager will extend a new class
> AbstractCSUsersManager which implements AbstractUsersManager
>
> The primary behavioural change of ConcurrentUsersManager is that it will
> provide user resource limits which are eventually consistent wrt containers
> (allocation or release) / users (active or inactive) - These limits affect
> scheduling and preemption but at massive scale small variances in individual
> decisions for a container are fine as long as the scheduler progresses in an
> acceptable way (i.e - users are unconcerned about these variances)
>
> More details of low level details -
> [https://docs.google.com/document/d/1czUh2XU3_X_eRIJAsSM40hRuHYSHw4ymyfky39dIj4s/edit]
>
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