[jira] [Created] (SPARK-4424) Clean up all SparkContexts in unit tests so that spark.driver.allowMultipleContexts can be false

["Josh Rosen (JIRA)" <ji...@apache.org>]

Josh Rosen created SPARK-4424:
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             Summary: Clean up all SparkContexts in unit tests so that spark.driver.allowMultipleContexts can be false
                 Key: SPARK-4424
                 URL: https://issues.apache.org/jira/browse/SPARK-4424
             Project: Spark
          Issue Type: Improvement
            Reporter: Josh Rosen
            Priority: Minor


This is a followup JIRA to SPARK-4180 to make sure that we finish refactoring the unit tests so that all SparkContexts are properly cleaned up; since the current tests don't perform proper cleanup, we currently need to set {{spark.driver.allowMultipleContexts=true}} in the test configuration.

It may be best to do this as part of a larger refactoring / cleanup of our test code to use cleaner test fixture patterns.



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