Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-2124

Add job counters for measuring time spent in three different phases in reducers

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Minor Minor
    • Resolution: Unresolved
    • Affects Version/s: 0.22.0
    • Fix Version/s: None
    • Component/s: jobtracker
    • Labels:
      None

      Description

      We currently have SLOTS_MILLIS_REDUCES which measures the total slot time of reducer.
      It will be useful if we have

      SLOTS_MILLIS_REDUCES_COPY
      SLOTS_MILLIS_REDUCES_SORT
      SLOTS_MILLIS_REDUCES_REDUCE
      

      which measures three different phases of a reducer.
      This will help us identify the bottleneck of the reducers.

      1. MAPREDUCE-2124.txt
        2 kB
        Scott Chen
      2. MAPREDUCE-2124-v2.txt
        4 kB
        Scott Chen
      3. test-result.txt
        54 kB
        Scott Chen
      4. MAPREDUCE-2124.3.txt
        4 kB
        Scott Chen

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          People

          • Assignee:
            Scott Chen
            Reporter:
            Scott Chen
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            Dates

            • Created:
              Updated:

              Development