Re: Invoking EJB but using *name* instead *IP*

Pedro,

RMI will not work if the server address is being translated by a NAT
router. See the list archives in particular
http://archives.java.sun.com/cgi-bin/wa?A2=ind0211&L=ejb-interest&P=R13738&I=-3
<http://archives.java.sun.com/cgi-bin/wa?A2=ind0211&L=ejb-interest&P=R13738&I=-3>

--Victor

Pedro Salazar wrote:

>Greetings,
>
>I'm trying to invoke a remote interface of a EJB. However, my server has
>1 network interface card which is viewed as 10.xxx and as 192.xxx,
>dependent of the network (the 192.xxx is translated by NAT in the
>firewall).
>
>When I invoke my EJB (even over HTTP) if the client is in the network
>10.xxx all works fine. When the client is in the 192.xxx network it
>hangs on the lookup() for a while (about 1-2 min) and then it will hang
>for long time in the create() until an exception is thrown:
>
>"
>initial context...
>lookup...
>narrow...
>create...
>java.rmi.ConnectException: Connection refused to host: 10.112.80.4;
>nested exception is:
>        java.net.ConnectException: Connection timed out
>        at
>sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:567)
>        at
>sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
>        at
>sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
>        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:101)
>        at
>org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
>        at
>org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
>        at
>org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96)
>        at
>org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
>        at
>org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:45)
>        at
>org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
>        at
>org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
>        at $Proxy1.create(Unknown Source)
>        at pt.ptinovacao.teste.ejb.TesteEJB.main(TesteEJB.java:32)
>Caused by: java.net.ConnectException: Connection timed out
>        at java.net.PlainSocketImpl.socketConnect(Native Method)
>        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:295)
>        at
>java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:161)
>        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:148)
>        at java.net.Socket.connect(Socket.java:425)
>        at java.net.Socket.connect(Socket.java:375)
>        at java.net.Socket.<init>(Socket.java:290)
>        at java.net.Socket.<init>(Socket.java:118)
>        at
>sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
>        at
>sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:122)
>        at
>sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:562)
>        ... 12 more
>"
>
>I don't know but you may clarify me this, independent of the invocation
>way (directly or over HTTP), the RMI callbacks are always made directly
>to client, right?
>
>Any ideas how to solve this problem?
>
>I'm using the name of the host instead the IP address, but it throws
>the error of connection refused to host 10.xxx!!! Why is using the ip
>address instead the network name? In my application server (JBOSS) I
>already put in the jboss-service all  JNDI references to the host name.
>
>thanks.
>
>regards,
>Pedro Salazar.
>--
>PS
>[email protected]
>PGP:0E129E31D803BC61
>
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