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https://issues.apache.org/jira/browse/SPARK-33114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17296790#comment-17296790
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Apache Spark commented on SPARK-33114:
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User 'hiboyang' has created a pull request for this issue:
https://github.com/apache/spark/pull/31763
> Add metadata in MapStatus to support custom shuffle manager
> -----------------------------------------------------------
>
> Key: SPARK-33114
> URL: https://issues.apache.org/jira/browse/SPARK-33114
> Project: Spark
> Issue Type: Improvement
> Components: Shuffle
> Affects Versions: 3.0.1
> Reporter: BoYang
> Priority: Major
>
> Current MapStatus class is tightly bound with local (sort merge) shuffle
> which uses BlockManagerId to store the shuffle data location. It could not
> support other custom shuffle manager implementation.
> We could add "metadata" to MapStatus and allow different shuffle manager
> implementation to store information related to them.
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