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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-17447) performance improvement in Partitioner.DefaultPartitioner
Date Mon, 12 Sep 2016 11:11:20 GMT

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

Sean Owen resolved SPARK-17447.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

Issue resolved by pull request 15039
[https://github.com/apache/spark/pull/15039]

> 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
>            Assignee: Sean Owen
>            Priority: Trivial
>             Fix For: 2.1.0
>
>         Attachments: SPARK-17447.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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