Kent Yao created SPARK-21771:
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Summary: SparkSQLEnv creates a useless meta hive client
Key: SPARK-21771
URL: https://issues.apache.org/jira/browse/SPARK-21771
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.0
Reporter: Kent Yao
Priority: Minor
Once a meta hive client is created, it generates its SessionState which creates
a lot of session related directories, some deleteOnExit, some does not. if a
hive client is useless we may not create it at the very start.
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