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https://issues.apache.org/jira/browse/SPARK-3679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen resolved SPARK-3679.
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Resolution: Fixed
Fix Version/s: 1.2.0
Issue resolved by pull request 2522
[https://github.com/apache/spark/pull/2522]
> pickle the exact globals of functions
> -------------------------------------
>
> Key: SPARK-3679
> URL: https://issues.apache.org/jira/browse/SPARK-3679
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Reporter: Davies Liu
> Assignee: Davies Liu
> Priority: Critical
> Fix For: 1.2.0
>
>
> function.func_code.co_names has all the names used in the function, including
> name of attributes. It will pickle some unnecessary globals if there is a
> global having the same name with attribute (in co_names).
> There is a regression introduced by PR 2114
> https://github.com/apache/spark/pull/2144/files
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