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  1. Hadoop Map/Reduce
  2. MAPREDUCE-1974

FairScheduler can preempt the same task many times

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.21.0, 0.21.1, 0.22.0, 0.23.0
    • Fix Version/s: 0.22.0
    • Component/s: contrib/fair-share
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
      But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
      This makes FairScheduler preempt the same task many times.

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            • Assignee:
              schen Scott Chen
              Reporter:
              schen Scott Chen
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              • Created:
                Updated:
                Resolved: