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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/05/10 22:18:59 UTC

[jira] [Resolved] (SPARK-6584) Provide ExecutorPrefixTaskLocation to support the rdd which can be aware of partition's executor location.

     [ https://issues.apache.org/jira/browse/SPARK-6584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-6584.
------------------------------
    Resolution: Won't Fix

> Provide ExecutorPrefixTaskLocation to support the rdd which can be aware of partition's executor  location.
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-6584
>                 URL: https://issues.apache.org/jira/browse/SPARK-6584
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 1.4.0
>            Reporter: SaintBacchus
>
> The function *RDD.getPreferredLocations* can only be set the host awareness prefer locations.
> If some *RDD* wants to be scheduled by executor(such as BlockRDD), spark can do nothing for this.
> So  I want to provide *ExecutorPrefixTaskLocation* to support the rdd which can be aware of partition's executor location. This mechanism can avoid data transfor in the case of many executor in the same host.
> I think it's very useful especially for *SparkStreaming* since the *Receriver* save data into the *BlockManger* and then become a BlockRDD



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