JBoss Community

Hi

We are running a Client/Server Application were there is a server receiving incoming remote requests. Everything works ok until we double the number of clients (workers).

Then we start having this exception stack trace in some workers when they call remotely the server (master). We have implemented a retry mechanism that catches this error and tries to send the data 10 times, with random delays and also re-starting the transport.  But none of the failover mechanisms work.

org.jboss.remoting.CannotConnectException: Can not get connection to server. Problem establishing socket connection for InvokerLocator [socket://xxxxxxxxxxxxx.xxxxx.xxx:9003/?serializationtype=jboss]

        at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:831)

        at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:167)

        at org.jboss.remoting.Client.invoke(Client.java:2034)

        at org.jboss.remoting.Client.invoke(Client.java:877)

        at org.jboss.remoting.Client.invoke(Client.java:865)

        at org.jboss.remoting.transporter.TransporterClient.invoke(TransporterClient.java:321)

        at $Proxy15.isReady(Unknown Source)

Caused by: java.net.ConnectException: Connection refused

        at java.net.PlainSocketImpl.socketConnect(Native Method)

        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)

        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)

        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)

        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)

        at java.net.Socket.connect(Socket.java:519)

        at org.jboss.remoting.transport.socket.SocketClientInvoker.connect(SocketClientInvoker.java:293)

        at org.jboss.remoting.transport.socket.SocketClientInvoker.createSocket(SocketClientInvoker.java:210)

        at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConnection(MicroSocketClientInvoker.java:1165)

        at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:816)

        ... 10 more

The way we start the server is like this

this.transporter = TransporterServer.createTransporterServer("socket://"+this.hostname + ":"+ port + "/?serializationtype=jboss", this, this.serverName);

And at the client side

updateServer = (T) TransporterClient.createTransporterClient("socket://"+hostName+":" + port + "/?serializationtype=jboss", this.myClass);