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Posted to issues@spark.apache.org by "WangJianfei (JIRA)" <ji...@apache.org> on 2016/09/08 08:30:20 UTC

[jira] [Updated] (SPARK-17447) performance improvement in Partitioner.DefaultPartitioner

     [ https://issues.apache.org/jira/browse/SPARK-17447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

WangJianfei updated SPARK-17447:
--------------------------------
    Summary: performance improvement in Partitioner.DefaultPartitioner   (was: we need't sort the rdds in Partitioner.DefaultPartitioner )

> performance improvement in Partitioner.DefaultPartitioner 
> ----------------------------------------------------------
>
>                 Key: SPARK-17447
>                 URL: https://issues.apache.org/jira/browse/SPARK-17447
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.0.0
>            Reporter: WangJianfei
>              Labels: patch
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> if there are many rdds in some situations,the sort will loss he performance servely,actually we needn't sort the rdds , we can just scan the rdds one time to gain the same goal.



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