Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3394

Add log guard for a debug message in ReduceTask

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Trivial Trivial
    • Resolution: Fixed
    • Affects Version/s: 0.20.205.0
    • Fix Version/s: 1.1.0
    • Component/s: task
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      There's a LOG.debug message in ReduceTask that stringifies a task ID and uses a non-negligible amount of CPU in some cases. We should guard it with isDebugEnabled

      1. mr-3394.txt
        0.8 kB
        Todd Lipcon

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          • Assignee:
            Todd Lipcon
            Reporter:
            Todd Lipcon
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            Dates

            • Created:
              Updated:
              Resolved:

              Development