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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2131

Aggregate JobCounters and TaskCounters in a background thread

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    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 0.22.0
    • None
    • jobtracker
    • None

    Description

      JobTracker.getJobCounters() aggregates the counters when getting requested.
      It may consume lots of CPU if the request is too often.
      It may be good if we aggregate them in a background thread.

      Thoughts?

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            Unassigned Unassigned
            schen Scott Chen
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              Created:
              Updated: