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https://issues.apache.org/jira/browse/SPARK-3280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14113519#comment-14113519
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Apache Spark commented on SPARK-3280:
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User 'rxin' has created a pull request for this issue:
https://github.com/apache/spark/pull/2178
> 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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