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  1. Hadoop Map/Reduce
  2. MAPREDUCE-502

Allow jobtracker to be configured with zero completed jobs in memory

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.21.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
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      If the number of jobs per user exceeded mapred.jobtracker.completeuserjobs.maximum then the job was flushed out of the jobtracker's memory after the job finishes min-time (hardcoded to 1 min). This caused jobclient's fail with NPE. In this patch the min-time to retain a job is made configurable (mapred.jobtracker.retirejob.interval.min).
      Show
      If the number of jobs per user exceeded mapred.jobtracker.completeuserjobs.maximum then the job was flushed out of the jobtracker's memory after the job finishes min-time (hardcoded to 1 min). This caused jobclient's fail with NPE. In this patch the min-time to retain a job is made configurable (mapred.jobtracker.retirejob.interval.min).

      Description

      There is no way to specify that the jobtracker should not keep any completed job in memory.

        Attachments

        1. HADOOP-4973-v2.1.patch
          10 kB
          Amar Kamat
        2. HADOOP-4973-v2.2.patch
          11 kB
          Amar Kamat
        3. MAPREDUCE-502-v1.0.patch
          11 kB
          Amar Kamat
        4. MAPREDUCE-502-v1.1.patch
          11 kB
          Amar Kamat
        5. MAPREDUCE-502-v1.1-branch-0.20-example.2.patch
          7 kB
          Amar Kamat

          Activity

            People

            • Assignee:
              amar_kamat Amar Kamat
              Reporter:
              amar_kamat Amar Kamat
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              Dates

              • Created:
                Updated:
                Resolved: