java - 我们如何在java中使用Akka-remote-access进行2路通信

Question

通过在网上搜索，我可以进行单向对话，但是当接收者在其控制台中输入任何内容时，它会给出如下错误，并且还想知道分布式akka系统如何在java上工作，我得到了一些帮助来自[ https://github.com/petabridge/akkadotnet-code-samples]但它是在 .net 中。

请帮助我创建一个基于java的分布式akka系统。

[ERROR] [12/10/2015 11:04:41.414] [default-akka.remote.default-remote-dispatcher-8] [NettyTransport(akka://default)] failed to bind to /10.208.19.135:8091, shutting down Netty transport
[ERROR] [12/10/2015 11:04:41.443] [Application-Actor-System-akka.actor.default-dispatcher-4] [Remoting] Remoting error: [Startup failed] [
akka.remote.RemoteTransportException: Startup failed
at akka.remote.Remoting.akka$remote$Remoting$$notifyError(Remoting.scala:136)
at akka.remote.Remoting.start(Remoting.scala:201)
at akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:184)
at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:618)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:615)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:615)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:632)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:141)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:108)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:99)
at akka.actor.ActorSystem$.create(ActorSystem.scala:47)
at akka.actor.ActorSystem.create(ActorSystem.scala)
at com.wipro.hdfc.dispatch.actors.FilePicker.onReceive(FilePicker.java:12)
at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167)
at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97)
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$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: org.jboss.netty.channel.ChannelException: Failed to bind to: /10.208.19.135:8091
at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272)
at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:393)
at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:389)
at scala.util.Success$$anonfun$map$1.apply(Try.scala:206)
at scala.util.Try$.apply(Try.scala:161)
at scala.util.Success.map(Try.scala:206)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:67)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:82)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72)
at akka.dispatch.BatchingExecutor$Batch.run(BatchingExecutor.scala:58)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
... 5 more
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193)
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:372)
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:296)
at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
 ]
 [ERROR] [12/10/2015 11:04:41.506] [Application-Actor-System-akka.actor.default-dispatcher-4] [akka://Application-Actor-System/user/FilePicker] Failed to bind to: /10.208.19.135:8091
org.jboss.netty.channel.ChannelException: Failed to bind to: /10.208.19.135:8091
at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272)
at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:393)
at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:389)
at scala.util.Success$$anonfun$map$1.apply(Try.scala:206)
at scala.util.Try$.apply(Try.scala:161)
at scala.util.Success.map(Try.scala:206)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:67)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:82)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72)
at akka.dispatch.BatchingExecutor$Batch.run(BatchingExecutor.scala:58)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.Net.bind(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193)
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:372)
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:296)
at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Answer 1

您粘贴的错误表明您正在尝试将一个应用程序绑定(bind)到已在使用的网络端口，学习 Akka 远程处理的一个常见错误是尝试使用同一端口在同一台计算机上运行两个 Actor 系统，这是不可能，每个系统在同一台计算机上运行时都需要唯一的端口。

我建议阅读文档并尝试一些确实有效的示例项目，而不是尝试通过反复试验来学习。

通过 activator 可以使用多个示例项目，涵盖 Java 中的 Akka 远程处理和集群，例如:http://www.typesafe.com/activator/template/akka-sample-remote-java

您可以在此处找到 Akka 远程处理的 Java 端的文档: http://doc.akka.io/docs/akka/2.4.1/java/remoting.html