[jira] [Created] (SPARK-26079) Flaky test: StreamingQueryListenersConfSuite

["Marcelo Vanzin (JIRA)" <ji...@apache.org>]

Marcelo Vanzin created SPARK-26079:
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             Summary: Flaky test: StreamingQueryListenersConfSuite
                 Key: SPARK-26079
                 URL: https://issues.apache.org/jira/browse/SPARK-26079
             Project: Spark
          Issue Type: Bug
          Components: SQL, Tests
    Affects Versions: 2.4.0
            Reporter: Marcelo Vanzin


We've had this test fail a few times in our builds.

{noformat}
org.scalatest.exceptions.TestFailedException: null equaled null
      at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:528)
      at org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:1560)
      at org.scalatest.Assertions$AssertionsHelper.macroAssert(Assertions.scala:501)
      at org.apache.spark.sql.streaming.StreamingQueryListenersConfSuite$$anonfun$1.apply(StreamingQueryListenersConfSuite.scala:45)
      at org.apache.spark.sql.streaming.StreamingQueryListenersConfSuite$$anonfun$1.apply(StreamingQueryListenersConfSuite.scala:38)
      at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
      at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
      at org.scalatest.Transformer.apply(Transformer.scala:22)
      at org.scalatest.Transformer.apply(Transformer.scala:20)
      at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:186)
{noformat}

You can reproduce it reliably by adding a sleep in the test listener. Fix coming up.



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