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https://issues.apache.org/jira/browse/SPARK-2545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344504#comment-14344504
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Nicholas Chammas commented on SPARK-2545:
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cc [~tobias.schlatter]
> Add a diagnosis mode for closures to figure out what they're bringing in
> ------------------------------------------------------------------------
>
> Key: SPARK-2545
> URL: https://issues.apache.org/jira/browse/SPARK-2545
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Aaron Davidson
>
> Today, it's pretty hard to figure out why your closure is bigger than
> expected, because it's not obvious what objects are being included or who is
> including them. We should have some sort of diagnosis available to users with
> very large closures that displays the contents of the closure.
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