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https://issues.apache.org/jira/browse/SPARK-22120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16179411#comment-16179411
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Apache Spark commented on SPARK-22120:
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User 'GregOwen' has created a pull request for this issue:
https://github.com/apache/spark/pull/19341
> TestHiveSparkSession.reset() should clean out Hive warehouse directory
> ----------------------------------------------------------------------
>
> Key: SPARK-22120
> URL: https://issues.apache.org/jira/browse/SPARK-22120
> Project: Spark
> Issue Type: Improvement
> Components: Tests
> Affects Versions: 2.2.0
> Reporter: Gregory Owen
> Priority: Minor
>
> Background: We call TestHiveSparkSession.reset() after each suite that
> extends TestHiveSingleton. The goal of the function is to reset all
> Hive-related state before the next suite.
> This task: When attempting to make some changes to the Hive-based tests, we
> noticed some subtle and annoying bugs related to state from one
> TestHiveSingleton suite affecting the results of later suites. To fix those
> bugs, and in the interests of making this method more complete, we should
> fully clean out the Hive warehouse directory in the reset() method.
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