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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2014/09/04 04:00:55 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-3280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Wendell updated SPARK-3280:
-----------------------------------
    Component/s: Spark Core

> Made sort-based shuffle the default implementation
> --------------------------------------------------
>
>                 Key: SPARK-3280
>                 URL: https://issues.apache.org/jira/browse/SPARK-3280
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Reynold Xin
>            Assignee: Reynold Xin
>         Attachments: hash-sort-comp.png
>
>
> sort-based shuffle has lower memory usage and seems to outperform hash-based in almost all of our testing.



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