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Posted to issues@spark.apache.org by "Andrew Ash (JIRA)" <ji...@apache.org> on 2014/09/11 18:49:34 UTC

[jira] [Updated] (SPARK-2680) Lower spark.shuffle.memoryFraction to 0.2 by default

     [ https://issues.apache.org/jira/browse/SPARK-2680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Ash updated SPARK-2680:
------------------------------
    Component/s: Shuffle

> Lower spark.shuffle.memoryFraction to 0.2 by default
> ----------------------------------------------------
>
>                 Key: SPARK-2680
>                 URL: https://issues.apache.org/jira/browse/SPARK-2680
>             Project: Spark
>          Issue Type: Improvement
>          Components: Shuffle, Spark Core
>            Reporter: Matei Zaharia
>            Assignee: Matei Zaharia
>            Priority: Minor
>             Fix For: 1.1.0
>
>
> Seems like it's good to be more conservative on this, in particular to try to fit all the data in the young gen. People can always increase it for performance.



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