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  1. Spark
  2. SPARK-3280

Made sort-based shuffle the default implementation

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.2.0
    • Shuffle, Spark Core
    • None

    Description

      sort-based shuffle has lower memory usage and seems to outperform hash-based in almost all of our testing.

      Attachments

        1. hash-sort-comp.png
          40 kB
          Burak Yavuz

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SPARK-3385 Improve shuffle performance

          • Major - Major loss of function.
          • Resolved
          links to

          Pull request #2178 [Github] Pull Request #2178 (rxin)

          Activity

            People

              rxin Reynold Xin
              rxin Reynold Xin
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              Dates

                Created:
                Updated:
                Resolved: