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https://issues.apache.org/jira/browse/SPARK-9853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16258896#comment-16258896
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Apache Spark commented on SPARK-9853:
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User 'yucai' has created a pull request for this issue:
https://github.com/apache/spark/pull/19788
> Optimize shuffle fetch of contiguous partition IDs
> --------------------------------------------------
>
> Key: SPARK-9853
> URL: https://issues.apache.org/jira/browse/SPARK-9853
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core, SQL
> Reporter: Matei Zaharia
> Assignee: Matei Zaharia
> Priority: Minor
>
> On the map side, we should be able to serve a block representing multiple
> partition IDs in one block manager request
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