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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2014/08/28 09:55:01 UTC

[jira] [Created] (SPARK-3280) Made sort-based shuffle the default implementation

Reynold Xin created SPARK-3280:
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             Summary: Made sort-based shuffle the default implementation
                 Key: SPARK-3280
                 URL: https://issues.apache.org/jira/browse/SPARK-3280
             Project: Spark
          Issue Type: Improvement
            Reporter: Reynold Xin
            Assignee: Reynold Xin


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



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