[ https://issues.apache.org/jira/browse/SPARK-23992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439349#comment-16439349
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Apache Spark commented on SPARK-23992:
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User '10110346' has created a pull request for this issue:
https://github.com/apache/spark/pull/21079
> ShuffleDependency does not need to be deserialized every time
> -------------------------------------------------------------
>
> Key: SPARK-23992
> URL: https://issues.apache.org/jira/browse/SPARK-23992
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: liuxian
> Priority: Minor
>
> In the same stage, 'ShuffleDependency' is not necessary to be deserialized each time.
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