Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.21.0
    • Component/s: task
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      It's easy to grab the number of millis spent in GC (see JvmMetrics for example). Exposing these as task counters would be handy - occasionally I've seen user jobs where long GC pauses cause big "unexplainable" performance problems, and a large counter would make it obvious to the user what's going on.

        Attachments

        1. MAPREDUCE-1304.patch
          7 kB
          Aaron Kimball
        2. MAPREDUCE-1304.3.patch
          9 kB
          Aaron Kimball
        3. MAPREDUCE-1304.2.patch
          7 kB
          Aaron Kimball

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              • Assignee:
                kimballa Aaron Kimball
                Reporter:
                tlipcon Todd Lipcon
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                Dates

                • Created:
                  Updated:
                  Resolved: