Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-4385

FairScheduler.maxTasksToAssign() should check for fairscheduler.assignmultiple.maps < TaskTracker.availableSlots

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.0.3
    • Fix Version/s: 1.2.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      FairScheduler.maxTasksToAssign() can potentially return a value greater than the available slots. Currently, we rely on canAssignMaps()/canAssignReduces() to reject such requests.

      These additional calls can be avoided by check against the available slots in maxTasksToAssign().

        Attachments

        1. MR-4385.patch
          5 kB
          Karthik Kambatla

          Activity

            People

            • Assignee:
              kasha Karthik Kambatla
              Reporter:
              kasha Karthik Kambatla
            • Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: