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  1. Hadoop Common
  2. HADOOP-1238

maps_running metric is only updated at the end of the task

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 0.12.3
    • 0.13.0
    • metrics
    • None
    • ganglia metrics

    Description

      The maps_running and reduces_running metrics aren't getting into ganglia correctly - they always appear to be underestimated. A quick look at the TaskTracker code shows that these metrics are only updated when a task is finished. Of course, once a task is finished, the reporting will not note the completed task (since it's not running anymore).

      Attachments

        1. fix-tasks-running-metric.patch
          2 kB
          Michael Bieniosek

        Activity

          People

            dbowen David Bowen
            bien Michael Bieniosek
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            Dates

              Created:
              Updated:
              Resolved: