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