Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.8.0, 2.7.3, 3.0.0-alpha1
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: capacity scheduler
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      There are multiple reasons why preemption could unnecessarily preempt containers. One is that an app could be requesting a large container (say 8-GB), and the preemption monitor could conceivably preempt multiple containers (say 8, 1-GB containers) in order to fill the large container request. These smaller containers would then be rejected by the requesting AM and potentially given right back to the preempted app.

        Attachments

        1. YARN-4390.branch-2.8.003.patch
          245 kB
          Eric Payne
        2. YARN-4390.branch-2.8.002.patch
          244 kB
          Eric Payne
        3. YARN-4390.branch-2.8.001.patch
          244 kB
          Eric Payne
        4. YARN-4390.8.patch
          246 kB
          Wangda Tan
        5. YARN-4390.7.patch
          244 kB
          Wangda Tan
        6. QueueNotHittingMax.jpg
          364 kB
          Eric Payne
        7. YARN-4390.6.patch
          244 kB
          Wangda Tan
        8. YARN-4390.5.patch
          239 kB
          Wangda Tan
        9. YARN-4390.4.patch
          231 kB
          Wangda Tan
        10. YARN-4390.3.branch-2.patch
          231 kB
          Wangda Tan
        11. YARN-4390.3.patch
          231 kB
          Wangda Tan
        12. YARN-4390.2.patch
          225 kB
          Wangda Tan
        13. YARN-4390-test-results.pdf
          98 kB
          Wangda Tan
        14. YARN-4390.1.patch
          224 kB
          Wangda Tan
        15. YARN-4390-design.1.pdf
          106 kB
          Wangda Tan

          Issue Links

            Activity

              People

              • Assignee:
                leftnoteasy Wangda Tan
                Reporter:
                eepayne Eric Payne
              • Votes:
                0 Vote for this issue
                Watchers:
                17 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: