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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5002

AM could potentially allocate a reduce container to a map attempt

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.3-alpha, 0.23.7, 2.7.0
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: mr-am
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      As discussed in MAPREDUCE-4982, after MAPREDUCE-4893 it is theoretically possible for the AM to accidentally assign a reducer container to a map attempt if the AM doesn't find a reduce attempt actively looking for the container (e.g.: the RM accidentally allocated too many reducer containers).

        Attachments

        1. MAPREDUCE-5002.1.patch
          6 kB
          Chang Li
        2. MAPREDUCE-5002.2.patch
          6 kB
          Chang Li
        3. MAPREDUCE-5002.2.patch
          6 kB
          Chang Li
        4. MAPREDUCE-5002.3.patch
          8 kB
          Chang Li
        5. MAPREDUCE-5002.4.patch
          8 kB
          Chang Li
        6. MAPREDUCE-5002.5.patch
          8 kB
          Chang Li
        7. MAPREDUCE-5002.6.patch
          8 kB
          Chang Li

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              • Assignee:
                lichangleo Chang Li
                Reporter:
                jlowe Jason Lowe
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                Dates

                • Created:
                  Updated:
                  Resolved: