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https://issues.apache.org/jira/browse/SPARK-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15055862#comment-15055862
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Prashant Sharma commented on SPARK-12303:
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Given one can already set root directory `spark.repl.classdir` under which the
temp directory is created, I can not come up with any benefits of having a non
random directory. Also one might need to clean it up before each run, because
the class name series for each command as `$line1` will conflict with contents
of the directory.
> Configuration parameter by which can choose if we want the REPL generated
> class directory name to be random or fixed name.
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-12303
> URL: https://issues.apache.org/jira/browse/SPARK-12303
> Project: Spark
> Issue Type: New Feature
> Components: Spark Shell
> Reporter: piyush
> Priority: Minor
>
> .class generated by spark REPL are stored in a temp directory with random
> name.
> Configuration parameter by which can choose if we want the REPL generated
> class directory name to be random or fixed name.
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