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  1. Apache Tez
  2. TEZ-3115

Shuffle string handling adds significant memory overhead

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.7.0
    • 0.7.1, 0.8.3
    • None
    • None

    Description

      While investigating the OOM heap dump from TEZ-3114 I noticed that the ShuffleManager and other shuffle-related objects were holding onto many strings that added up to over a hundred megabytes of memory.

      Attachments

        1. TEZ-3115.1.patch
          49 kB
          Jonathan Turner Eagles
        2. TEZ-3115.2.patch
          63 kB
          Jonathan Turner Eagles
        3. TEZ-3115.3-branch-0.7.patch
          33 kB
          Jonathan Turner Eagles
        4. TEZ-3115.3.patch
          64 kB
          Jonathan Turner Eagles
        5. TEZ-3115.4-branch-0.7.patch
          33 kB
          Jonathan Turner Eagles
        6. TEZ-3115.4.patch
          65 kB
          Jonathan Turner Eagles

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. TEZ-3116 Umbrella ticket for shuffle fixes

          • Major - Major loss of function.
          • Open
          relates to

          Bug - A problem which impairs or prevents the functions of the product. TEZ-3014 OOM during Shuffle in JDK 8

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              jeagles Jonathan Turner Eagles
              jlowe Jason Darrell Lowe
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              Dates

                Created:
                Updated:
                Resolved: