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Posted to yarn-dev@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2017/01/11 03:06:58 UTC

[jira] [Created] (YARN-6081) LeafQueue#getTotalPendingResourcesConsideringUserLimit should deduct reserved from pending to avoid unnecessary preemption of reserved container

Wangda Tan created YARN-6081:
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             Summary: LeafQueue#getTotalPendingResourcesConsideringUserLimit should deduct reserved from pending to avoid unnecessary preemption of reserved container
                 Key: YARN-6081
                 URL: https://issues.apache.org/jira/browse/YARN-6081
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Wangda Tan
            Assignee: Wangda Tan
            Priority: Critical


While doing YARN-5864 tests, found an issue when a queue's reserved > pending. PreemptionResourceCalculator will preempt reserved container even if there's only one active queue in the cluster. 

To fix the problem, we need to deduct reserved from pending when getting total-pending resource for LeafQueue.



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