jeremiaswerner commented on issue #3022: services.KafkaConnectorTests.Kafka heisenbug URL: https://github.com/apache/incubator-openwhisk/issues/3022#issuecomment-348508897 @devbv I caught a stacktrace of a slightly different error but related ``` services.KafkaConnectorTests > Kafka connector should send and receive a kafka message even after shutdown one of instances STANDARD_OUT Send message to topic. Successfully sent message to topic: Dinosaurs-0@9 Receiving message from topic. Received 1. Took 7 msec: List(Fri Dec 01 14:04:25 UTC 2017) Send message to topic. Successfully sent message to topic: Dinosaurs-0@10 Receiving message from topic. Received 1. Took 19 msec: List(Fri Dec 01 14:04:25 UTC 2017) Send message to topic. Successfully sent message to topic: Dinosaurs-0@11 Receiving message from topic. Received 0. Took 124394 msec: List() services.KafkaConnectorTests > Kafka connector should send and receive a kafka message even after shutdown one of instances FAILED org.scalatest.exceptions.TestFailedException: 0 was not equal to 1 at org.scalatest.MatchersHelper$.indicateFailure(MatchersHelper.scala:340) at org.scalatest.Matchers$ShouldMethodHelper$.shouldMatcher(Matchers.scala:6668) at org.scalatest.Matchers$AnyShouldWrapper.should(Matchers.scala:6704) at services.KafkaConnectorTests$$anonfun$6$$anonfun$apply$2.apply$mcVI$sp(KafkaConnectorTests.scala:142) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160) at services.KafkaConnectorTests$$anonfun$6.apply(KafkaConnectorTests.scala:134) at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85) at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104) at org.scalatest.Transformer.apply(Transformer.scala:22) at org.scalatest.Transformer.apply(Transformer.scala:20) at org.scalatest.FlatSpecLike$$anon$1.apply(FlatSpecLike.scala:1682) at org.scalatest.TestSuite$class.withFixture(TestSuite.scala:196) at org.scalatest.FlatSpec.withFixture(FlatSpec.scala:1685) at org.scalatest.FlatSpecLike$class.invokeWithFixture$1(FlatSpecLike.scala:1679) at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1692) at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1692) at org.scalatest.SuperEngine.runTestImpl(Engine.scala:289) at org.scalatest.FlatSpecLike$class.runTest(FlatSpecLike.scala:1692) at org.scalatest.FlatSpec.runTest(FlatSpec.scala:1685) at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1750) at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1750) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:396) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:384) at scala.collection.immutable.List.foreach(List.scala:392) at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:384) at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:373) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:410) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:384) at scala.collection.immutable.List.foreach(List.scala:392) at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:384) at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:379) at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:461) at org.scalatest.FlatSpecLike$class.runTests(FlatSpecLike.scala:1750) at org.scalatest.FlatSpec.runTests(FlatSpec.scala:1685) at org.scalatest.Suite$class.run(Suite.scala:1147) at org.scalatest.FlatSpec.org$scalatest$FlatSpecLike$$super$run(FlatSpec.scala:1685) at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1795) at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1795) at org.scalatest.SuperEngine.runImpl(Engine.scala:521) at org.scalatest.FlatSpecLike$class.run(FlatSpecLike.scala:1795) at services.KafkaConnectorTests.org$scalatest$BeforeAndAfterAll$$super$run(KafkaConnectorTests.scala:43) at org.scalatest.BeforeAndAfterAll$class.liftedTree1$1(BeforeAndAfterAll.scala:213) at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:210) at services.KafkaConnectorTests.run(KafkaConnectorTests.scala:43) ```
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