Marcelo Vanzin created SPARK-24352:
--------------------------------------

             Summary: Flaky test: StandaloneDynamicAllocationSuite
                 Key: SPARK-24352
                 URL: https://issues.apache.org/jira/browse/SPARK-24352
             Project: Spark
          Issue Type: Bug
          Components: Spark Core, Tests
    Affects Versions: 2.3.0
            Reporter: Marcelo Vanzin


>From jenkins:

[https://amplab.cs.berkeley.edu/jenkins/user/vanzin/my-views/view/Spark/job/spark-branch-2.3-test-maven-hadoop-2.6/384/testReport/junit/org.apache.spark.deploy/StandaloneDynamicAllocationSuite/executor_registration_on_a_blacklisted_host_must_fail/]

 
{noformat}
Error Message
There is already an RpcEndpoint called CoarseGrainedScheduler
Stacktrace
      java.lang.IllegalArgumentException: There is already an RpcEndpoint 
called CoarseGrainedScheduler
      at 
org.apache.spark.rpc.netty.Dispatcher.registerRpcEndpoint(Dispatcher.scala:71)
      at 
org.apache.spark.rpc.netty.NettyRpcEnv.setupEndpoint(NettyRpcEnv.scala:130)
      at 
org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend.createDriverEndpointRef(CoarseGrainedSchedulerBackend.scala:396)
      at 
org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend.start(CoarseGrainedSchedulerBackend.scala:391)
      at 
org.apache.spark.scheduler.cluster.StandaloneSchedulerBackend.start(StandaloneSchedulerBackend.scala:61)
      at 
org.apache.spark.deploy.StandaloneDynamicAllocationSuite$$anonfun$1.apply$mcV$sp(StandaloneDynamicAllocationSuite.scala:512)
      at 
org.apache.spark.deploy.StandaloneDynamicAllocationSuite$$anonfun$1.apply(StandaloneDynamicAllocationSuite.scala:495)
      at 
org.apache.spark.deploy.StandaloneDynamicAllocationSuite$$anonfun$1.apply(StandaloneDynamicAllocationSuite.scala:495)
      at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
      at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
      at org.scalatest.Transformer.apply(Transformer.scala:22)
      at org.scalatest.Transformer.apply(Transformer.scala:20)
      at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:186)
      at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:68)
      at 
org.scalatest.FunSuiteLike$class.invokeWithFixture$1(FunSuiteLike.scala:183)
      at 
org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:196)
      at 
org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:196)
{noformat}

This actually looks like a previous test is leaving some stuff running and 
making this one fail.



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