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https://issues.apache.org/jira/browse/SPARK-14068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208804#comment-15208804
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Josh Rosen commented on SPARK-14068:
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What alternative file placement strategies did you have in mind?
> Pluggable DiskBlockManager
> --------------------------
>
> Key: SPARK-14068
> URL: https://issues.apache.org/jira/browse/SPARK-14068
> Project: Spark
> Issue Type: New Feature
> Components: Block Manager
> Reporter: He Tianyi
> Priority: Minor
>
> Currently DiskBlockManager places file by hashing strategy, this can be
> non-optimal in some scenario.
> Maybe we make it pluggable. That is, DiskBlockManager can be replaced with
> another implementation with different strategy.
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