Details

    • Type: Sub-task Sub-task
    • Status: Closed
    • Priority: Blocker Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.23.0
    • Fix Version/s: 0.23.1
    • Component/s: mrv2, scheduler
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed
    • Release Note:
      Making CapacityScheduler more conservative so as to assign only one off-switch container in a single scheduling iteration.

      Description

      In hadoop-1, the CS is very conservative handing out off-switch assignments, we need to do the same in YARN.

      We noticed performance regressions due to this, particularly for reduces.

      1. MAPREDUCE-3641.patch
        13 kB
        Arun C Murthy
      2. MAPREDUCE-3641.patch
        17 kB
        Arun C Murthy
      3. MAPREDUCE-3641.patch
        18 kB
        Arun C Murthy
      4. MAPREDUCE-3641.patch
        29 kB
        Arun C Murthy

        Issue Links

          Activity

            People

            • Assignee:
              Arun C Murthy
              Reporter:
              Arun C Murthy
            • Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development