By following Akka documents, I can start two actors(front-end and back-end)
on the same machine, and they can talk to each other. However, when I tried
to deploy back-end actor to another machine(Linux), I hit error of start
remoting:
============ Multiple main classes detected, select one to run:
[1] com.goticks.BackendMain
[2] com.goticks.BackendRemoteDeployMain
[3] com.goticks.FrontendMain
[4] com.goticks.FrontendRemoteDeployMain
[5] com.goticks.FrontendRemoteDeployWatchMain
[6] com.goticks.SingleNodeMain
Enter number: 2
[info] Running com.goticks.BackendRemoteDeployMain
[DEBUG] [04/18/2016 15:54:11.554] [run-main-0] [EventStream(akka://backend)]
logger log1-Logging$DefaultLogger started
[DEBUG] [04/18/2016 15:54:11.555] [run-main-0] [EventStream(akka://backend)]
Default Loggers started
[INFO] [04/18/2016 15:54:11.591] [run-main-0] [akka.remote.Remoting] Starting
remoting
[ERROR] [04/18/2016 15:54:11.748]
[backend-akka.remote.default-remote-dispatcher-5]
[NettyTransport(akka://backend)] failed to bind to /192.168.1.9:2551, shutting
down Netty transport
[ERROR] [04/18/2016 15:54:11.757] [run-main-0] [akka.remote.Remoting] Remoting
error: [Startup failed] [
akka.remote.RemoteTransportException: Startup failed at
akka.remote.Remoting.akka$remote$Remoting$$notifyError(Remoting.scala:136)
at akka.remote.Remoting.start(Remoting.scala:201)
at
akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:184)
at akka.actor.ActorSystemImpl.liftedTree2$1(ActorSystem.scala:663)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:660)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:660)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:676)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:143)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:120)
at
com.goticks.BackendRemoteDeployMain$.delayedEndpoint$com$goticks$BackendRemoteDeployMain$1(BackendRemoteDeployMain.scala:9)
at
com.goticks.BackendRemoteDeployMain$delayedInit$body.apply(BackendRemoteDeployMain.scala:6)
at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
at
scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.collection.immutable.List.foreach(List.scala:381)
at
scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)
at scala.App$class.main(App.scala:76)
at
com.goticks.BackendRemoteDeployMain$.main(BackendRemoteDeployMain.scala:6)
at
com.goticks.BackendRemoteDeployMain.main(BackendRemoteDeployMain.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sbt.Run.invokeMain(Run.scala:67)
at sbt.Run.run0(Run.scala:61)
at sbt.Run.sbt$Run$$execute$1(Run.scala:51)
at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55)
at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
at sbt.Logger$$anon$4.apply(Logger.scala:85)
at sbt.TrapExit$App.run(TrapExit.scala:248)
at java.lang.Thread.run(Unknown Source)
Caused by: org.jboss.netty.channel.ChannelException: Failed to bind to:
/192.168.1.9:2551
at
org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272)
at
akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:410)
at
akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:406)
192.168.1.9 is another machine.
In backend.conf:
remote {
enabled-transports = ["akka.remote.netty.tcp"]
netty.tcp {
#hostname = "0.0.0.0"
hostname = "192.168.1.9"
port = 2551
}
}
I have one basic question, when deploy and start a remote actor on remote
JVM, do we need user login information to remote machine so that we can
remotely start actor/JVM?
Thanks,
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