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  1. Hadoop Map/Reduce
  2. MAPREDUCE-3749

ConcurrentModificationException in counter groups

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 0.23.0
    • 0.23.1
    • mrv2
    • None
    • Reviewed

    Description

      Iterating over a counter's groups while adding more groups will cause a ConcurrentModificationException.

      This was found while running Hive unit tests against a recent 0.23 version.

      Attachments

        1. MAPREDUCE-3749-concurrent.patch
          5 kB
          Thomas White
        2. MAPREDUCE-3749.patch
          5 kB
          Thomas White
        3. MAPREDUCE-3749.patch
          5 kB
          Thomas White
        4. MAPREDUCE-3749-test.patch
          1 kB
          Thomas White

        Issue Links

          breaks

          Sub-task - The sub-task of the issue MAPREDUCE-3827 Counters aggregation slowed down significantly after MAPREDUCE-3749

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Activity

            People

              tomwhite Thomas White
              tomwhite Thomas White
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              Dates

                Created:
                Updated:
                Resolved: