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  1. Hadoop Common
  2. HADOOP-3366

Shuffle/Merge improvements

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.18.0
    • None
    • None
    • Improved shuffle so that all fetched map-outputs are kept in-memory before being merged by stalling the shuffle so that the in-memory merge executes and frees up memory for the shuffle.

    Description

      This is intended to be a meta-issue to track various improvements to shuffle/merge in the reducer.

      Attachments

        1. 3366.1.patch
          9 kB
          Devaraj Das
        2. 3366.1.patch
          9 kB
          Devaraj Das
        3. ifile.patch
          9 kB
          Arun Murthy
        4. HADOOP-3366_0_20080605.patch
          10 kB
          Arun Murthy
        5. 3366.reducetask.patch
          3 kB
          Devaraj Das
        6. HADOOP-3366_2_20080606.patch
          15 kB
          Arun Murthy
        7. HADOOP-3366_2_20080606.patch
          16 kB
          Arun Murthy

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              acmurthy Arun Murthy
              acmurthy Arun Murthy
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              Dates

                Created:
                Updated:
                Resolved: