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https://issues.apache.org/jira/browse/SPARK-19956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-19956:
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Assignee: Apache Spark
> Optimize a location order of blocks with topology information
> -------------------------------------------------------------
>
> Key: SPARK-19956
> URL: https://issues.apache.org/jira/browse/SPARK-19956
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.1.0
> Reporter: coneyliu
> Assignee: Apache Spark
>
> When call the method getLocations of BlockManager, we only compare the data
> block host. Random selection for non-local data blocks, this may cause the
> selected data block to be in a different rack. So in this patch to increase
> the sort of the rack.
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