You should use the machine's own ip address in the hostname property.

/Patrik

On Tue, Apr 19, 2016 at 3:13 AM, Scalaian <[email protected]> wrote:

> 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,
>
> --
> >>>>>>>>>> Read the docs: http://akka.io/docs/
> >>>>>>>>>> Check the FAQ:
> http://doc.akka.io/docs/akka/current/additional/faq.html
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-- 

Patrik Nordwall
Akka Tech Lead
Lightbend <http://www.lightbend.com/> -  Reactive apps on the JVM
Twitter: @patriknw

-- 
>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>>      Search the archives: https://groups.google.com/group/akka-user
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