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  1. Hadoop Common
  2. HADOOP-5338

Reduce tasks are stuck waiting for map outputs when none are in progress

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.20.0
    • Fix Version/s: 0.20.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When JT is restarted several times, a situation is encountered when the reduce tasks are stuck forever waiting for map outputs. However 100%map is complete and none of the map tasks are in progress. The reduce tasks wait infinitely.

        Attachments

        1. log.txt
          5 kB
          Ramya Sunil
        2. HADOOP-5338-v2.1.patch
          11 kB
          Amar Kamat
        3. HADOOP-5338-v2.2.patch
          10 kB
          Amar Kamat
        4. HADOOP-5338-v2.2-branch-20.patch
          10 kB
          Amar Kamat
        5. HADOOP-5338-v2.2-branch-20.patch
          10 kB
          Amar Kamat
        6. HADOOP-5338-v2.3.patch
          10 kB
          Amar Kamat

          Activity

            People

            • Assignee:
              amar_kamat Amar Kamat
              Reporter:
              rramya Ramya Sunil
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              Dates

              • Created:
                Updated:
                Resolved: