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https://issues.apache.org/jira/browse/SPARK-6394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen updated SPARK-6394:
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Assignee: Wenchen Fan
> cleanup BlockManager companion object and improve the getCacheLocs method in
> DAGScheduler
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-6394
> URL: https://issues.apache.org/jira/browse/SPARK-6394
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Wenchen Fan
> Assignee: Wenchen Fan
> Priority: Minor
> Fix For: 1.4.0
>
>
> The current implementation of getCacheLocs include searching a HashMap many
> times, we can avoid this.
> And BlockManager.blockIdsToExecutorIds isn't called anywhere, we can remove
> it. Also we can combine BlockManager.blockIdsToHosts and
> blockIdsToBlockManagers into a single method in order to remove some
> unnecessary layers of indirection / collection creation.
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