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From "Nan Zhu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-1603) flaky test case in StreamingContextSuite
Date Thu, 24 Apr 2014 04:27:14 GMT
Nan Zhu created SPARK-1603:
------------------------------

             Summary: flaky test case in StreamingContextSuite
                 Key: SPARK-1603
                 URL: https://issues.apache.org/jira/browse/SPARK-1603
             Project: Spark
          Issue Type: Bug
            Reporter: Nan Zhu


When Jenkins was testing 5 PRs at the same time, the test results in my PR shows that  stop
gracefully in StreamingContextSuite failed, 

the stacktrace is as

{quote}

 stop gracefully *** FAILED *** (8 seconds, 350 milliseconds)
[info]   akka.actor.InvalidActorNameException: actor name [JobScheduler] is not unique!
[info]   at akka.actor.dungeon.ChildrenContainer$TerminatingChildrenContainer.reserve(ChildrenContainer.scala:192)
[info]   at akka.actor.dungeon.Children$class.reserveChild(Children.scala:77)
[info]   at akka.actor.ActorCell.reserveChild(ActorCell.scala:338)
[info]   at akka.actor.dungeon.Children$class.makeChild(Children.scala:186)
[info]   at akka.actor.dungeon.Children$class.attachChild(Children.scala:42)
[info]   at akka.actor.ActorCell.attachChild(ActorCell.scala:338)
[info]   at akka.actor.ActorSystemImpl.actorOf(ActorSystem.scala:518)
[info]   at org.apache.spark.streaming.scheduler.JobScheduler.start(JobScheduler.scala:57)
[info]   at org.apache.spark.streaming.StreamingContext.start(StreamingContext.scala:434)
[info]   at org.apache.spark.streaming.StreamingContextSuite$$anonfun$14$$anonfun$apply$mcV$sp$3.apply$mcVI$sp(StreamingContextSuite.scala:174)
[info]   at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
[info]   at org.apache.spark.streaming.StreamingContextSuite$$anonfun$14.apply$mcV$sp(StreamingContextSuite.scala:163)
[info]   at org.apache.spark.streaming.StreamingContextSuite$$anonfun$14.apply(StreamingContextSuite.scala:159)
[info]   at org.apache.spark.streaming.StreamingContextSuite$$anonfun$14.apply(StreamingContextSuite.scala:159)
[info]   at org.scalatest.FunSuite$$anon$1.apply(FunSuite.scala:1265)
[info]   at org.scalatest.Suite$class.withFixture(Suite.scala:1974)
[info]   at org.apache.spark.streaming.StreamingContextSuite.withFixture(StreamingContextSuite.scala:34)
[info]   at org.scalatest.FunSuite$class.invokeWithFixture$1(FunSuite.scala:1262)
[info]   at org.scalatest.FunSuite$$anonfun$runTest$1.apply(FunSuite.scala:1271)
[info]   at org.scalatest.FunSuite$$anonfun$runTest$1.apply(FunSuite.scala:1271)
[info]   at org.scalatest.SuperEngine.runTestImpl(Engine.scala:198)
[info]   at org.scalatest.FunSuite$class.runTest(FunSuite.scala:1271)
[info]   at org.apache.spark.streaming.StreamingContextSuite.org$scalatest$BeforeAndAfter$$super$runTest(StreamingContextSuite.scala:34)
[info]   at org.scalatest.BeforeAndAfter$class.runTest(BeforeAndAfter.scala:171)
[info]   at org.apache.spark.streaming.StreamingContextSuite.runTest(StreamingContextSuite.scala:34)
[info]   at org.scalatest.FunSuite$$anonfun$runTests$1.apply(FunSuite.scala:1304)
[info]   at org.scalatest.FunSuite$$anonfun$runTests$1.apply(FunSuite.scala:1304)
[info]   at org.scalatest.SuperEngine$$anonfun$org$scalatest$SuperEngine$$runTestsInBranch$1.apply(Engine.scala:260)
[info]   at org.scalatest.SuperEngine$$anonfun$org$scalatest$SuperEngine$$runTestsInBranch$1.apply(Engine.scala:249)
[info]   at scala.collection.immutable.List.foreach(List.scala:318)
[info]   at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:249)
[info]   at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:326)
[info]   at org.scalatest.FunSuite$class.runTests(FunSuite.scala:1304)
[info]   at org.apache.spark.streaming.StreamingContextSuite.runTests(StreamingContextSuite.scala:34)
[info]   at org.scalatest.Suite$class.run(Suite.scala:2303)
[info]   at org.apache.spark.streaming.StreamingContextSuite.org$scalatest$FunSuite$$super$run(StreamingContextSuite.scala:34)
[info]   at org.scalatest.FunSuite$$anonfun$run$1.apply(FunSuite.scala:1310)
[info]   at org.scalatest.FunSuite$$anonfun$run$1.apply(FunSuite.scala:1310)
[info]   at org.scalatest.SuperEngine.runImpl(Engine.scala:362)
[info]   at org.scalatest.FunSuite$class.run(FunSuite.scala:1310)
[info]   at org.apache.spark.streaming.StreamingContextSuite.org$scalatest$BeforeAndAfter$$super$run(StreamingContextSuite.scala:34)
[info]   at org.scalatest.BeforeAndAfter$class.run(BeforeAndAfter.scala:208)
[info]   at org.apache.spark.streaming.StreamingContextSuite.run(StreamingContextSuite.scala:34)
[info]   at org.scalatest.tools.ScalaTestFramework$ScalaTestRunner.run(ScalaTestFramework.scala:214)
[info]   at sbt.RunnerWrapper$1.runRunner2(FrameworkWrapper.java:223)
[info]   at sbt.RunnerWrapper$1.execute(FrameworkWrapper.java:236)
[info]   at sbt.ForkMain$Run$2.call(ForkMain.java:294)
[info]   at sbt.ForkMain$Run$2.call(ForkMain.java:284)
[info]   at java.util.concurrent.FutureTask.run(FutureTask.java:262)
[info]   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[info]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[info]   at java.lang.Thread.run(Thread.java:744)

{quote}

I think we don't need to assign a fixed name to JobScheduler Actor, instead, we can just use
auto-generated name in Akka



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