Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.18.0
    • Component/s: None
    • Labels:
      None
    • Release Note:
      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.

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

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            • Assignee:
              Arun C Murthy
              Reporter:
              Arun C Murthy
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              Dates

              • Created:
                Updated:
                Resolved:

                Development