Hi there,

we have an appclient which communication to an appserver. The configuration for
the communication is in a property file which is used for initialize the
initialcontext.

No we have the task to support multiple appserver. This means, if the appserver1
is down we have to switch to appserver2. This should not be done by extends the
jndi url.

If I test the mechanism I get following exception: Caused by: javax.naming.CommunicationException: Can't find SerialContextProvider
[Root exception is org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201
completed: No] at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:165) at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:398) at javax.naming.InitialContext.lookup(InitialContext.java:351) at
com.hartter.vsop.j2ee.jms.comm.JmsHartterUtil.getJndiJmsQueueContainer(JmsHartterUtil.java:312) ... 10 more Caused by: org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201 completed:
No at
com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2690) at
com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2711) at
com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.<init>(SocketOrChannelConnectionImpl.java:261) at
com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.<init>(SocketOrChannelConnectionImpl.java:274) at
com.sun.corba.ee.impl.transport.SocketOrChannelContactInfoImpl.createConnection(SocketOrChannelContactInfoImpl.java:130) at
com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.beginRequest(CorbaClientRequestDispatcherImpl.java:192) at
com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(CorbaClientDelegateImpl.java:181) at
com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClientDelegateImpl.java:325) at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112) at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:69) at
com.sun.enterprise.naming.SerialContext.narrowProvider(SerialContext.java:131) at
com.sun.enterprise.naming.SerialContext.getRemoteProvider(SerialContext.java:220) at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:160) ... 13 more Caused by: java.lang.RuntimeException:
java.nio.channels.UnresolvedAddressException at
com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:347) at
com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.<init>(SocketOrChannelConnectionImpl.java:244) ... 23 more Caused by: java.nio.channels.UnresolvedAddressException at sun.nio.ch.Net.checkAddress(Net.java:30) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:451) at
com.sun.corba.ee.impl.orbutil.ORBUtility.openSocketChannel(ORBUtility.java:105) at
com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:332) ... 24 more

The reason for the exception is the wrong configured hostname.

In the second try I get following exception: Caused by: javax.naming.CommunicationException: serial context communication ex
[Root exception is com.sun.enterprise.connectors.ConnectorRuntimeException:
Failed to look up ConnectorDescriptor from JNDI] at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:427) at javax.naming.InitialContext.lookup(InitialContext.java:351) at
com.hartter.vsop.j2ee.jms.comm.JmsHartterUtil.getJndiJmsQueueContainer(JmsHartterUtil.java:312) ... 10 more Caused by: com.sun.enterprise.connectors.ConnectorRuntimeException: Failed to
look up ConnectorDescriptor from JNDI at
com.sun.enterprise.naming.factory.ConnectorObjectFactory.getObjectInstance(ConnectorObjectFactory.java:98) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:403) ... 12 more

I don't understand the reason for this exception. Between the exceptions I close
the old InitialContext and create a new InitialContext.

InitialContext - Parameters: org.omg.CORBA.ORBInitialHost = wronghost org.omg.CORBA.ORBInitialPort = 3700 java.naming.factory.initial = com.sun.enterprise.naming.SerialInitContextFactory java.naming.factory.url.pkgs = com.sun.enterprise.naming java.naming.factory.state =
com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl org.omg.CORBA.ORBInitialHost = correcthost

If I try with the correct hostname, everything works fine.

Has someone an idea? Is it not possible to initialize a second InitialContext with different
parameters?

Thanks...

Bernd [Message sent by forum member 'speedybv' ]

http://forums.java.net/jive/thread.jspa?messageID=374478