gaborgsomogyi commented on a change in pull request #28442:
URL: https://github.com/apache/spark/pull/28442#discussion_r420807799



##########
File path: 
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaTestUtils.scala
##########
@@ -131,11 +130,7 @@ class KafkaTestUtils(
   }
 
   private def setUpMiniKdc(): Unit = {
-    val kdcDir = Utils.createTempDir()

Review comment:
       I agree to use `eventually` in general but the actual code copy-pastes 
~20 lines. I think a helper represents value. Without helper several places 
must be fixed if any modification needed which not all the time discovered.




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