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Call From test04.amplab/10.123.1.2 to test04.amplab:0 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:
sbt.ForkMain$ForkError: Connection refused	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:547)	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:642)	at org.apache.hadoop.ipc.Client$Connection.access$2600(Client.java:314)	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1399)	at org.apache.hadoop.ipc.Client.call(Client.java:1318)	at org.apache.hadoop.ipc.Client.call(Client.java:1300)	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)	at com.sun.proxy.$Proxy11.getClusterMetrics(Unknown Source)	at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationClientProtocolPBClientImpl.getClusterMetrics(ApplicationClientProtocolPBClientImpl.java:152)	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)	at com.sun.proxy.$Proxy12.getClusterMetrics(Unknown Source)	at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getYarnClusterMetrics(YarnClientImpl.java:246)	at org.apache.spark.deploy.yarn.Client$$anonfun$submitApplication$1.apply(Client.scala:69)	at org.apache.spark.deploy.yarn.Client$$anonfun$submitApplication$1.apply(Client.scala:69)	at org.apache.spark.Logging$class.logInfo(Logging.scala:59)	at org.apache.spark.deploy.yarn.Client.logInfo(Client.scala:35)	at org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:68)	at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:61)	at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:141)	at org.apache.spark.SparkContext.(SparkContext.scala:310)	at org.apache.spark.deploy.yarn.YarnClusterDriver$.main(YarnClusterSuite.scala:140)	at org.apache.spark.deploy.yarn.YarnClusterSuite$$anonfun$1.apply$mcV$sp(YarnClusterSuite.scala:91)	at org.apache.spark.deploy.yarn.YarnClusterSuite$$anonfun$1.apply(YarnClusterSuite.scala:89)	at org.apache.spark.deploy.yarn.YarnClusterSuite$$anonfun$1.apply(YarnClusterSuite.scala:89)	at org.scalatest.Transformer$$anonfun$apply$1.apply(Transformer.scala:22)	at org.scalatest.Transformer$$anonfun$apply$1.apply(Transformer.scala:22)	at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)	at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)	at org.scalatest.Transformer.apply(Transformer.scala:22)	at org.scalatest.Transformer.apply(Transformer.scala:20)	at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:158)	at org.scalatest.Suite$class.withFixture(Suite.scala:1121)	at org.scalatest.FunSuite.withFixture(FunSuite.scala:1559)	at org.scalatest.FunSuiteLike$class.invokeWithFixture$1(FunSuiteLike.scala:155)	at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:167)	at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:167)	at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)	at org.scalatest.FunSuiteLike$class.runTest(FunSuiteLike.scala:167)	at org.scalatest.FunSuite.runTest(FunSuite.scala:1559)	at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:200)	at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:200)	at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)	at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)	at scala.collection.immutable.List.foreach(List.scala:318)	at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)	at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)	at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)	at org.scalatest.FunSuiteLike$class.runTests(FunSuiteLike.scala:200)	at org.scalatest.FunSuite.runTests(FunSuite.scala:1559)	at org.scalatest.Suite$class.run(Suite.scala:1423)	at org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1559)	at org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:204)	at org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:204)	at org.scalatest.SuperEngine.runImpl(Engine.scala:545)	at org.scalatest.FunSuiteLike$class.run(FunSuiteLike.scala:204)	at org.apache.spark.deploy.yarn.YarnClusterSuite.org$scalatest$BeforeAndAfterAll$$super$run(YarnClusterSuite.scala:35)	at org.scalatest.BeforeAndAfterAll$class.liftedTree1$1(BeforeAndAfterAll.scala:257)	at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:256)	at org.apache.spark.deploy.yarn.YarnClusterSuite.run(YarnClusterSuite.scala:35)	at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:444)	at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:651)	at sbt.ForkMain$Run$2.call(ForkMain.java:294)	at sbt.ForkMain$Run$2.call(ForkMain.java:284)	at java.util.concurrent.FutureTask.run(FutureTask.java:262)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:745)