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  1. Hadoop Map/Reduce
  2. MAPREDUCE-722

More slots are getting reserved for HiRAM job tasks then required

    Details

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

      Cluster MR capacity=248/248 Map slot size=1500 mb and reduce slot size=2048 mb. Total number of nodes=124
      4 queues each having Capacity=25% User Limit=100%.

    • Hadoop Flags:
      Reviewed

      Description

      Submitted a normal job with map=124=reduces
      After submitted High RAM with maps=31=reduces map.memory=1800 reduce.memory=2800
      Again 3 job maps=124=reduces
      total of 248 slots were reserved for both maps and reduces for High Job which much higher then required.
      Is observed in Hadoop 0.20.0

        Attachments

        1. MAPREDUCE-722.1.txt
          13 kB
          Vinod Kumar Vavilapalli
        2. MAPREDUCE-722.txt
          10 kB
          Vinod Kumar Vavilapalli

          Activity

            People

            • Assignee:
              vinodkv Vinod Kumar Vavilapalli
              Reporter:
              karams Karam Singh
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              Dates

              • Created:
                Updated:
                Resolved: