Hi, I'm developing an application with Spark. My java application trying to creates spark context like
-------- Creating spark context ------------ public SparkContext createSparkContext(){ String execUri = System.getenv("SPARK_EXECUTOR_URI"); String[] jars = SparkILoop.getAddedJars(); SparkConf conf = new SparkConf().setMaster(getMaster()) .setAppName("App name").setJars(jars) .set("spark.repl.class.uri", interpreter.intp().classServer().uri()); if (execUri != null) { conf.set("spark.executor.uri", execUri); } if (System.getenv("SPARK_HOME") != null) { conf.setSparkHome(System.getenv("SPARK_HOME")); } SparkContext sparkContext = new SparkContext(conf); return sparkContext; } public String getMaster() { String envMaster = System.getenv().get("MASTER"); if(envMaster!=null) return envMaster; String propMaster = System.getProperty("spark.master"); if(propMaster!=null) return propMaster; return "local[*]"; } But when i call createSparkContext(), in driver side, i got logs like ---------- My application's log ----------------- INFO [2014-09-01 17:28:37,092] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Changing view acls to: root INFO [2014-09-01 17:28:37,092] ({pool-1-thread-2} Logging.scala[logInfo]:58) - SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root) INFO [2014-09-01 17:28:37,093] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Starting HTTP Server INFO [2014-09-01 17:28:37,096] ({pool-1-thread-2} Server.java[doStart]:272) - jetty-8.1.14.v20131031 INFO [2014-09-01 17:28:37,099] ({pool-1-thread-2} AbstractConnector.java[doStart]:338) - Started SocketConnector@0.0.0.0:46610 INFO [2014-09-01 17:28:40,050] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Changing view acls to: root INFO [2014-09-01 17:28:40,050] ({pool-1-thread-2} Logging.scala[logInfo]:58) - SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root) INFO [2014-09-01 17:28:40,589] ({spark-akka.actor.default-dispatcher-2} Slf4jLogger.scala[applyOrElse]:80) - Slf4jLogger started INFO [2014-09-01 17:28:40,626] ({spark-akka.actor.default-dispatcher-2} Slf4jLogger.scala[apply$mcV$sp]:74) - Starting remoting INFO [2014-09-01 17:28:40,833] ({spark-akka.actor.default-dispatcher-3} Slf4jLogger.scala[apply$mcV$sp]:74) - Remoting started; listening on addresses :[akka.tcp://spark@222.122.122.122:46833] INFO [2014-09-01 17:28:40,835] ({spark-akka.actor.default-dispatcher-4} Slf4jLogger.scala[apply$mcV$sp]:74) - Remoting now listens on addresses: [akka.tcp://spark@222.122.122.122:46833] INFO [2014-09-01 17:28:40,858] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Registering MapOutputTracker INFO [2014-09-01 17:28:40,861] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Registering BlockManagerMaster INFO [2014-09-01 17:28:40,877] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Created local directory at /tmp/spark-local-20140901172840-baf4 INFO [2014-09-01 17:28:40,881] ({pool-1-thread-2} Logging.scala[logInfo]:58) - MemoryStore started with capacity 546.3 MB. INFO [2014-09-01 17:28:40,912] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Bound socket to port 42671 with id = ConnectionManagerId(222.122.122.122,42671) INFO [2014-09-01 17:28:40,917] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Trying to register BlockManager INFO [2014-09-01 17:28:40,920] ({spark-akka.actor.default-dispatcher-4} Logging.scala[logInfo]:58) - Registering block manager 222.122.122.122:42671 with 546.3 MB RAM INFO [2014-09-01 17:28:40,921] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Registered BlockManager INFO [2014-09-01 17:28:40,932] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Starting HTTP Server INFO [2014-09-01 17:28:40,933] ({pool-1-thread-2} Server.java[doStart]:272) - jetty-8.1.14.v20131031 INFO [2014-09-01 17:28:40,935] ({pool-1-thread-2} AbstractConnector.java[doStart]:338) - Started SocketConnector@0.0.0.0:52020 INFO [2014-09-01 17:28:40,936] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Broadcast server started at http://222.122.122.122:52020 INFO [2014-09-01 17:28:40,943] ({pool-1-thread-2} Logging.scala[logInfo]:58) - HTTP File server directory is /tmp/spark-fc4cc226-c740-4cec-ad0f-6f88762d365c INFO [2014-09-01 17:28:40,943] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Starting HTTP Server INFO [2014-09-01 17:28:40,944] ({pool-1-thread-2} Server.java[doStart]:272) - jetty-8.1.14.v20131031 INFO [2014-09-01 17:28:40,946] ({pool-1-thread-2} AbstractConnector.java[doStart]:338) - Started SocketConnector@0.0.0.0:59458 INFO [2014-09-01 17:28:41,167] ({pool-1-thread-2} Server.java[doStart]:272) - jetty-8.1.14.v20131031 INFO [2014-09-01 17:28:41,177] ({pool-1-thread-2} AbstractConnector.java[doStart]:338) - Started SelectChannelConnector@0.0.0.0:4040 INFO [2014-09-01 17:28:41,180] ({pool-1-thread-2} Logging.scala[logInfo]:58) - Started SparkUI at http://222.122.122.122:4040 INFO [2014-09-01 17:28:41,410] ({spark-akka.actor.default-dispatcher-3} Logging.scala[logInfo]:58) - Connecting to master spark://master.spark.com:7077... INFO [2014-09-01 17:29:01,441] ({spark-akka.actor.default-dispatcher-4} Logging.scala[logInfo]:58) - Connecting to master spark://master.spark.com:7077... INFO [2014-09-01 17:29:21,440] ({spark-akka.actor.default-dispatcher-5} Logging.scala[logInfo]:58) - Connecting to master spark://master.spark.com:7077... ERROR [2014-09-01 17:29:41,441] ({spark-akka.actor.default-dispatcher-3} Logging.scala[logError]:74) - Application has been killed. Reason: All masters are unresponsive! Giving up. ERROR [2014-09-01 17:29:41,441] ({spark-akka.actor.default-dispatcher-3} Logging.scala[logError]:74) - Exiting due to error from cluster scheduler: All masters are unresponsive! Giving up. and spark master print logs like --------- Spark master log ------------------- 14/09/01 17:29:01 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:01 INFO LocalActorRef: Message [akka.remote.transport.AssociationHandle$Disassociated] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/endpointManager/endpointWriter-akka.tcp%3A%2F%2Fspark%40222.122.122.122%3A46833-89/endpointReader-akka.tcp%3A%2F%2Fspark%40222.122.122.122%3A46833-0#1195166754] was not delivered. [163] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:01 INFO LocalActorRef: Message [akka.remote.transport.AssociationHandle$Disassociated] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FsparkMaster%40222.122.122.122%3A48188-183#-552318082] was not delivered. [164] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:21 ERROR Remoting: java.io.OptionalDataException at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1370) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at scala.collection.immutable.$colon$colon.readObject(List.scala:366) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at scala.collection.immutable.$colon$colon.readObject(List.scala:366) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at scala.collection.immutable.$colon$colon.readObject(List.scala:366) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at scala.collection.immutable.$colon$colon.readObject(List.scala:366) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at scala.collection.immutable.$colon$colon.readObject(List.scala:366) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at akka.serialization.JavaSerializer$$anonfun$1.apply(Serializer.scala:136) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57) at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:136) at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104) at scala.util.Try$.apply(Try.scala:161) at akka.serialization.Serialization.deserialize(Serialization.scala:98) at akka.remote.serialization.MessageContainerSerializer.fromBinary(MessageContainerSerializer.scala:58) at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104) at scala.util.Try$.apply(Try.scala:161) at akka.serialization.Serialization.deserialize(Serialization.scala:98) at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:23) at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:55) at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:55) at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:73) at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:764) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498) at akka.actor.ActorCell.invoke(ActorCell.scala:456) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237) at akka.dispatch.Mailbox.run(Mailbox.scala:219) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) 14/09/01 17:29:21 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:21 INFO LocalActorRef: Message [akka.remote.transport.AssociationHandle$Disassociated] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/endpointManager/endpointWriter-akka.tcp%3A%2F%2Fspark%40222.122.122.122%3A46833-90/endpointReader-akka.tcp%3A%2F%2Fspark%40222.122.122.122%3A46833-0#-1619151630] was not delivered. [165] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:21 INFO LocalActorRef: Message [akka.remote.transport.AssociationHandle$Disassociated] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FsparkMaster%40222.122.122.122%3A48189-184#387676530] was not delivered. [166] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 INFO LocalActorRef: Message [akka.remote.transport.ActorTransportAdapter$DisassociateUnderlying] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FsparkMaster%40222.122.122.122%3A48190-185#772674183] was not delivered. [167] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:41 INFO LocalActorRef: Message [akka.remote.transport.ActorTransportAdapter$DisassociateUnderlying] from Actor[akka://sparkMaster/deadLetters] to Actor[akka://sparkMaster/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2Fspark%40222.122.122.122%3A46833-182#293009171] was not delivered. [168] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 14/09/01 17:29:41 ERROR EndpointWriter: AssociationError [akka.tcp:// sparkmas...@master.spark.com:7077] -> [akka.tcp:// spark@222.122.122.122:46833]: Error [Association failed with [akka.tcp:// spark@222.122.122.122:46833]] [ akka.remote.EndpointAssociationException: Association failed with [akka.tcp://spark@222.122.122.122:46833] Caused by: akka.remote.transport.netty.NettyTransport$$anonfun$associate$1$$anon$2: Connection refused: /222.122.122.122:46833 ] 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 ERROR EndpointWriter: AssociationError [akka.tcp:// sparkmas...@master.spark.com:7077] -> [akka.tcp:// spark@222.122.122.122:46833]: Error [Association failed with [akka.tcp:// spark@222.122.122.122:46833]] [ akka.remote.EndpointAssociationException: Association failed with [akka.tcp://spark@222.122.122.122:46833] Caused by: akka.remote.transport.netty.NettyTransport$$anonfun$associate$1$$anon$2: Connection refused: /222.122.122.122:46833 ] 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. 14/09/01 17:29:41 ERROR EndpointWriter: AssociationError [akka.tcp:// sparkmas...@master.spark.com:7077] -> [akka.tcp:// spark@222.122.122.122:46833]: Error [Association failed with [akka.tcp:// spark@222.122.122.122:46833]] [ akka.remote.EndpointAssociationException: Association failed with [akka.tcp://spark@222.122.122.122:46833] Caused by: akka.remote.transport.netty.NettyTransport$$anonfun$associate$1$$anon$2: Connection refused: /222.122.122.122:46833 ] 14/09/01 17:29:41 INFO Master: akka.tcp://spark@222.122.122.122:46833 got disassociated, removing it. ------------- My application and spark master is running on the same node and MASTER env variable set as spark://master.spark.com:7077. I'm using spark 1.0.1 I verified my cluster works with spark-shell smoothy. Can someone give me some clue, how i can fix the problem? Thanks.