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  1. Hadoop Map/Reduce
  2. MAPREDUCE-4400

Fix performance regression for small jobs/workflows

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.20.203.0, 1.0.3
    • 1.1.0
    • performance, task
    • None
    • Reviewed
    • task, performance

    Description

      There is a significant performance regression for small jobs/workflows (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with Hive and Pig jobs. PigMix has an average 40% regression against 0.20.2.

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        Issue Links

          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-4477 Improve task finish synchronization

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open
          supercedes

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-3612 Task.TaskReporter.done method blocked for some time when task is finishing

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-4381 Make PROGRESS_INTERVAL of org.apache.hadoop.mapred.Task a tunable

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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              vicaya Luke Lu
              vicaya Luke Lu
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              Dates

                Created:
                Updated:
                Resolved: