Github user dding3 commented on the pull request: https://github.com/apache/spark/pull/13328#issuecomment-222039995 Thanks for pointing out it. I think you are right, delete the checkpoint directory after it's created is on purpose. I will add "delete checkpoint directory" back. Besides, the temp directory will be deleted after the test finished as it has been registered to delete if VM shuts down when it's created. I have verified that, the temp checkpoint directory is not deleted after test finished in the previous code, while it's deleted in the new code.
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