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  1. Hadoop YARN
  2. YARN-6081

LeafQueue#getTotalPendingResourcesConsideringUserLimit should deduct reserved from pending to avoid unnecessary preemption of reserved container

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9.0, 3.0.0-alpha2
    • Component/s: None
    • Labels:
      None

      Description

      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

        Attachments

        1. YARN-6081.002.patch
          31 kB
          Wangda Tan
        2. YARN-6081.001.patch
          27 kB
          Wangda Tan

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            People

            • Assignee:
              leftnoteasy Wangda Tan
              Reporter:
              leftnoteasy Wangda Tan
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              Dates

              • Created:
                Updated:
                Resolved: