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  1. Hadoop Map/Reduce
  2. MAPREDUCE-3902 MR AM should reuse containers for map tasks, there-by allowing fine-grained control on num-maps for users without need for CombineFileInputFormat etc.
  3. MAPREDUCE-4615

[MAPREDUCE-3902] RMContainerAllocator#assign should be split into functions

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Details

    • Sub-task
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • MR-3902
    • None
    • applicationmaster
    • None

    Description

      Currently, the RMContainerAllocator#assign functions does a lot of works inside the one function. This is a bit confusing and make the changes difficult, so this ticket is for refactoring the function and split it into some functions.

      Attachments

        1. MAPREDUCE-4615.patch
          15 kB
          Tsuyoshi Ozawa

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            ozawa Tsuyoshi Ozawa
            ozawa Tsuyoshi Ozawa
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            Dates

              Created:
              Updated: