无法从Java应用程序连接到本地spark群集_Java_Apache Spark

无法从Java应用程序连接到本地spark群集

java apache-spark

无法从Java应用程序连接到本地spark群集,java,apache-spark,Java,Apache Spark,我正在尝试运行一个连接到本地独立spark群集的java应用程序。我使用start-all.sh以默认配置启动集群。当我转到集群的网页时，它启动正常。我可以使用SparkR连接到这个集群，但是当我从Java内部使用相同的主URL进行连接时，会收到一条错误消息我用的是Spark 1.5 以下是我的Java代码： SparkConf conf = new SparkConf(); conf.setAppName("test"); conf.setMaster("spark://Ellens-Mac

我正在尝试运行一个连接到本地独立spark群集的java应用程序。我使用start-all.sh以默认配置启动集群。当我转到集群的网页时，它启动正常。我可以使用SparkR连接到这个集群，但是当我从Java内部使用相同的主URL进行连接时，会收到一条错误消息

我用的是Spark 1.5

以下是我的Java代码：

SparkConf conf = new SparkConf();
conf.setAppName("test");
conf.setMaster("spark://Ellens-MacBook-Pro.local:7077");
conf.setSparkHome("/Applications/spark-1.5.0-bin-hadoop2.6");
SparkContext sc = new SparkContext(conf);

以下是错误消息的一个片段：

ReliableDeliverySupervisor:与远程系统关联 [阿卡。tcp://sparkMaster@Ellens MacBook Pro.local:7077]失败，地址现在已被[5000]女士屏蔽。原因：[解除关联]2009年10月15日 17:31:41信息AppClient$ClientEndpoint:连接到主服务器 spark://Ellens-MacBook-Pro.local:7077... 15/10/09 17:31:41警告 ReliableDeliverySupervisor:与远程系统关联 [阿卡。tcp://sparkMaster@Ellens MacBook Pro.local:7077]失败，地址现在已被[5000]女士屏蔽。原因：[解除关联]2009年10月15日 17:32:01信息AppClient$ClientEndpoint:连接到主服务器 spark://Ellens-MacBook-Pro.local:7077... 15/10/09 17:32:01错误 SparkUncaughtExceptionHandler:线程中未捕获的异常线程[appclient注册重试线程，5，主] java.util.concurrent.RejectedExecutionException:任务 java.util.concurrent。FutureTask@54e2b678拒绝 java.util.concurrent。ThreadPoolExecutor@5d9f3e0d[跑步，游泳池大小]= 1，活动线程=1，排队任务=0，已完成任务=2] 位于java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution（ThreadPoolExecutor.java:2047）

以下是Spark日志中的输出：

Spark Command: /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/bin/java -cp /Applications/spark-1.5.0-bin-hadoop2.6/sbin/../conf/:/Applications/spark-1.5.0-bin-hadoop2.6/lib/spark-assembly-1.5.0-hadoop2.6.0.jar:/Applications/spark-1.5.0-bin-hadoop2.6/lib/datanucleus-api-jdo-3.2.6.jar:/Applications/spark-1.5.0-bin-hadoop2.6/lib/datanucleus-core-3.2.10.jar:/Applications/spark-1.5.0-bin-hadoop2.6/lib/datanucleus-rdbms-3.2.9.jar -Xms1g -Xmx1g org.apache.spark.deploy.master.Master --ip Ellens-MacBook-Pro.local --port 7077 --webui-port 8080
========================================
15/10/12 17:56:43 INFO Master: Registered signal handlers for [TERM, HUP, INT]
15/10/12 17:56:43 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/10/12 17:56:43 INFO SecurityManager: Changing view acls to: ellenk
15/10/12 17:56:43 INFO SecurityManager: Changing modify acls to: ellenk
15/10/12 17:56:43 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(ellenk); users with modify permissions: Set(ellenk)
15/10/12 17:56:44 INFO Slf4jLogger: Slf4jLogger started
15/10/12 17:56:44 INFO Remoting: Starting remoting
15/10/12 17:56:44 INFO Remoting: Remoting started; listening on addresses :[akka.tcp://sparkMaster@Ellens-MacBook-Pro.local:7077]
15/10/12 17:56:44 INFO Utils: Successfully started service 'sparkMaster' on port 7077.
15/10/12 17:56:44 INFO Master: Starting Spark master at spark://Ellens-MacBook-Pro.local:7077
15/10/12 17:56:44 INFO Master: Running Spark version 1.5.0
15/10/12 17:56:44 INFO Utils: Successfully started service 'MasterUI' on port 8080.
15/10/12 17:56:44 INFO MasterWebUI: Started MasterWebUI at http://192.168.1.3:8080
15/10/12 17:56:44 INFO Utils: Successfully started service on port 6066.
15/10/12 17:56:44 INFO StandaloneRestServer: Started REST server for submitting applications on port 6066
15/10/12 17:56:45 INFO Master: I have been elected leader! New state: ALIVE
15/10/12 17:56:50 INFO Master: Registering worker 192.168.1.3:57180 with 8 cores, 15.0 GB RAM
15/10/12 17:57:23 WARN ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.3:57238] has failed, address is now gated for [5000] ms. Reason: [null] 
15/10/12 17:57:23 INFO Master: 192.168.1.3:57238 got disassociated, removing it.
15/10/12 17:57:43 ERROR Remoting: 
java.io.OptionalDataException
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1371)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    at scala.collection.immutable.$colon$colon.readObject(List.scala:366)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2000)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1924)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2000)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1924)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2000)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1924)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2000)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1924)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
    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.MessageSerializer$.deserialize(MessageSerializer.scala:23)
    at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:58)
    at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:58)
    at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:76)
    at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:935)
    at akka.actor.Actor$class.aroundReceive(Actor.scala:467)
    at akka.remote.EndpointActor.aroundReceive(Endpoint.scala:411)
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
    at akka.actor.ActorCell.invoke(ActorCell.scala:487)
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
    at akka.dispatch.Mailbox.run(Mailbox.scala:220)
    at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
15/10/12 17:57:43 INFO Master: 192.168.1.3:57238 got disassociated, removing it.
15/10/12 17:58:03 INFO Master: 192.168.1.3:57238 got disassociated, removing it.
15/10/12 17:58:03 WARN ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkDriver@192.168.1.3:57238] has failed, address is now gated for [5000] ms. Reason: [Disassociated] 
15/10/12 17:58:03 INFO Master: 192.168.1.3:57238 got disassociated, removing it.
15/10/12 17:58:03 INFO Master: 192.168.1.3:57238 got disassociated, removing it.
15/10/12 17:58:03 INFO Master: 192.168.1.3:57238 got disassociated, removing it.

这很可能是因为Spark版本不匹配。确保客户机和服务器上使用的spark库的版本相同（包括Scala版本，如果使用的是提供的二进制版本之一，则应为2.10）

此外，如果您在客户端应用程序中使用akka，则应确保它与Spark（2.3.4+）使用的akka兼容。

Spark可以使用JavaSparkContext本地连接。例如，下面是一个构造函数：

JavaSparkContext(String master, String appName, String sparkHome, String[] jars)

JavaSparkContext从1.4开始引入：

这里有一个与我的工作类似的例子。我在用Maven。因此，应用程序jar是在目标目录下创建的：

public JavaSparkContext getJavaSparkContext(String myAppName ) {
    // Based on example above:
    String sparkHome="/Applications/spark-1.5.0-bin-hadoop2.6"; 
    JavaSparkContext sc = new JavaSparkContext("local", myAppName,
            sparkHome, new String[]{"target/sparkapp-0.0.1-SNAPSHOT.jar"});
    return sc;

}

参数myAppName只是一个字符串，例如：“我的应用”

我不确定这是否有用；我遇到了无法连接到的错误spark://master:7077; 然而，当我启动主/从时，它向我显示了火花主spark://127.0.1.1:7077.

所以我在/etc/hosts中将“master”映射到127.0.1.1，瞧，它工作起来很有魅力；它可以很容易地找到sparkContext实例

Jag

请发布您的Java代码和任何嵌套的异常（如果有），同时检查spark主日志并从中发布任何异常谢谢，我编辑了我的问题以包括Java代码和spark日志。我也遇到了这个问题。我在客户端上使用的版本与在服务器上使用的版本相同。

public JavaSparkContext getJavaSparkContext(String myAppName ) {
    // Based on example above:
    String sparkHome="/Applications/spark-1.5.0-bin-hadoop2.6"; 
    JavaSparkContext sc = new JavaSparkContext("local", myAppName,
            sparkHome, new String[]{"target/sparkapp-0.0.1-SNAPSHOT.jar"});
    return sc;

}