Wangda Tan created YARN-8657:
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Summary: User limit calculation should be read-lock-protected
within LeafQueue
Key: YARN-8657
URL: https://issues.apache.org/jira/browse/YARN-8657
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Reporter: Sumana Sathish
Assignee: Wangda Tan
When async scheduling is enabled, user limit calculation could be wrong:
It is possible that scheduler calculated a user_limit, but inside
{{canAssignToUser}} it becomes staled.
We need to protect user limit calculation.
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