JNDI Lookup in JBoss Cluster

[N Jain]

Hello Forum,

I am in the process of deploying an application in a clustered environment. I have the war file deployed on 2 separate
machine running Apache Tomcat servers. The load balancing is achieved using Apache HTTP Server using mod_jk.
I have another set of 2 machines (Windows Servers) that run JBoss5.1.0 which, are just used for EJB and JMS. A Windows NLB
is used to provide load balancing for the two AS.

The JBoss servers are started using the following parameters.
JBoss Node 1 192.168.0.1

run.bat -c all -g ClusterTest -u 239.255.100.100 -b 192.168.0.1 -Djboss.messaging.ServerPeerID=1

JBoss Node 2 192.168.0.2

run.bat -c all -g ClusterTest -u 239.255.100.100 -b 192.168.0.2 -Djboss.messaging.ServerPeerID=2

NLB VIP 192.168.0.3

If I set java.naming.provider.url to jnp://192.168.0.1:1099/ or jnp://192.168.0.2:1099/
JNDI lookup is successful. However, if I set java.naming.provider.url to jnp://192.168.0.3, the following error is thrown.

javax.naming.CommunicationException: Could not obtain connection to any of these urls: 192.168.0.3 and 
discovery failed with error: javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: 
Receive timed out] [Root exception is javax.naming.CommunicationException: Failed to connect to server /192.168.0.3:1099 
[Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server /192.168.0.3:1099 [Root exception is 
java.net.ConnectException: Connection refused: connect]]]

Please advice.

Regards
Nitin