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Posted to issues@spark.apache.org by "Matei Zaharia (JIRA)" <ji...@apache.org> on 2014/08/27 19:41:58 UTC

[jira] [Resolved] (SPARK-3239) Choose disks for spilling randomly

     [ https://issues.apache.org/jira/browse/SPARK-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matei Zaharia resolved SPARK-3239.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1.0

> Choose disks for spilling randomly
> ----------------------------------
>
>                 Key: SPARK-3239
>                 URL: https://issues.apache.org/jira/browse/SPARK-3239
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>    Affects Versions: 1.1.0
>            Reporter: Davies Liu
>            Assignee: Davies Liu
>             Fix For: 1.1.0
>
>
> Currently, ExternalHashMerger spill data into disks in the same order crossing processes in same node, it will have IO contention.
> It should choose the disks randomly.



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