gaborgsomogyi commented on issue #27877: [WIP][SPARK-30541][TESTS] Implement 
KafkaDelegationTokenSuite with testRetry
URL: https://github.com/apache/spark/pull/27877#issuecomment-599547375
 
 
   @zsxwing I've changed to a new approach, namely:
   * execute the suite in separate JVM => this will reduce (but not fully 
solve) `beforeAll` related issues. Newly created JVM mustn't have any old 
authentication information in place.
   * use `testRetry("Roundtrip", 3)` => this will solve test related flakyness
   
   Let's see how it behaves and I'll kick this couple of hundred times...
   
   The bulletproof solution would be to use separate JVM with full suite retry 
but haven't found solution to this.
   

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