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https://issues.apache.org/jira/browse/SPARK-21632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-21632.
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Resolution: Not A Problem
> There is no need to make attempts for createDirectory if the dir had existed
> -----------------------------------------------------------------------------
>
> Key: SPARK-21632
> URL: https://issues.apache.org/jira/browse/SPARK-21632
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.1.1
> Reporter: liuzhaokun
> Priority: Minor
>
> There is no need to make attempts for createDirectory if the dir had
> existed.So I think we should log it,and Jump out of the loop.
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