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  1. Hadoop Map/Reduce
  2. MAPREDUCE-6696

Add a configuration to limit the number of map tasks allowed per job.

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.8.0
    • 2.9.0, 3.0.0-alpha1
    • job submission
    • None
    • Reviewed

    Description

      Add a configuration "mapreduce.job.max.map" to limit the number of map tasks allowed per job. It will be useful for Hadoop admin to save Hadoop cluster resource by preventing users from submitting big mapreduce jobs. A mapredeuce job with too many mappers may fail with OOM after running for long time. It will be a big waste.

      Attachments

        1. MAPREDUCE-6696.004.patch
          5 kB
          Zhihai Xu
        2. MAPREDUCE-6696.003.patch
          5 kB
          Zhihai Xu
        3. MAPREDUCE-6696.002.patch
          5 kB
          Zhihai Xu
        4. MAPREDUCE-6696.001.patch
          5 kB
          Zhihai Xu
        5. MAPREDUCE-6696.000.patch
          5 kB
          Zhihai Xu

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            zxu Zhihai Xu
            zxu Zhihai Xu
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            Dates

              Created:
              Updated:
              Resolved:

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