Ngone51 commented on issue #27789: [SPARK-30541][TEST] testRetry flaky KafkaDelegationTokenSuite URL: https://github.com/apache/spark/pull/27789#issuecomment-594548734 To be honest, I'm not familiar with this part. So, actually, I cannot tell any details about this test. I decide to give a try in this way: 1. after tracking the discussion/JIRA/PR to confirm that we do not have a solution yet 2. we do use retry for other flaky test 3. this test is really flaky for long time... And of course, I'd like to listen to your opinions on this while a pure fix is always welcomed than this. As for `BeforeAndAfter`, I noted the limitation. I tested locally but without a detail check. And I realized now that `KafkaDelegationTokenSuite` extends `BeforeAndAfterAll`. I'll take a look.
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