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  1. Hadoop Map/Reduce
  2. MAPREDUCE-734

java.util.ConcurrentModificationException observed in unreserving slots for HiRam Jobs

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.21.0
    • Fix Version/s: 0.21.0
    • Component/s: capacity-sched
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Ran jobs out which 3 were HiRAM, the job were not removed from scheduler queue even after they successfully completed
      hadoop queue -info queue -showJobs displays somwthing like -:
      job_200907080724_0031 2 1247059146868 username NORMAL 0 running map tasks using 0 map slots. 0 additional slots reserved. 0 running reduce tasks using 0 reduce slots. 60 additional slots reserved.
      job_200907080724_0030 2 1247059146972 username NORMAL 0 running map tasks using 0 map slots. 0 additional slots reserved. 0 running reduce tasks using 0 reduce slots. 60 additional slots reserved.

      But it does not block anything, but seems like zombie process of system
      Jobtracker log show java.util.ConcurrentModificationException

        Attachments

        1. MAPREDUCE-734_0_20090708.patch
          1 kB
          Arun C Murthy
        2. MAPREDUCE-734_0_20090708_yhadoop20.patch
          1 kB
          Arun C Murthy
        3. MAPREDUCE-734-1.patch
          8 kB
          Sreekanth Ramakrishnan
        4. MAPREDUCE-734-2.patch
          9 kB
          Sreekanth Ramakrishnan
        5. MAPREDUCE-734-ydist.patch
          2 kB
          Sreekanth Ramakrishnan
        6. MAPREDUCE-734-20.patch
          2 kB
          Hemanth Yamijala

          Activity

            People

            • Assignee:
              acmurthy Arun C Murthy
              Reporter:
              karams Karam Singh
            • Votes:
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              Dates

              • Created:
                Updated:
                Resolved: