JNDI Configuration Query

[Bhavesh Dak]

Hi all,
This is first time I am using WebSphere
I want to look up some resources deployed in WebSphere and for that I need to create an InitialContext object
Am not able to find the JNDI configuration in WebSphere console. (Wanted to check the port information, for me 1099 port is not working)
Can any body guide me to get through JNDI configuration
any help anticipated

[Bhavesh Dak]

Look up code [Jars in class path: jnp-client-3.2.1.jar, jboss-common-3.2.1.jar]

try {
			Hashtable env = new Hashtable();
			env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
			env.put(Context.PROVIDER_URL, "jnp://localhost:1099/");

			InitialContext intCtx = new InitialContext(env);
			Object obj = intCtx.lookup("ConnectionFactory");
		} catch (NamingException e) {
			e.printStackTrace();
		} 

Getting following Exception
javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1058)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1127)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:478)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471)
at javax.naming.InitialContext.lookup(Unknown Source)
...etc...
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive(Native Method)
at java.net.DatagramSocket.receive(Unknown Source)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1038)
... 5 more

[Deepak Pant]

Suggest you look at this post for some helpful details:
https://coderanch.com/t/484139/Websphere/JNDI-Lookup-WebSphere

[Bhavesh Dak]

Deepak,

I tried with the port mentioned in the link but still getting same exception.
It will be great if you can just help me to locate where the jndi configuration resides in WebSphere

Thanks for reply

[Deepak Pant]

Suggest you try corba style provider URL method mentioned in the link. The port number for base websphere version is generally 2809. For ND version it starts from 98XX.

You can look for Bootstrap port under the server->ports link in the admin console.

The name to lookup gets logged in the WebSphere SystemOut.log file.

[Victor Ramen]

Not sure if looking up the jndi tree will give the correct port name. But here is what works for me on WAS6.1.

Go to Admin console.
On left hand navigation bar, go to Resources--> JMS
Choose one of ConnectionFactory, QueueConnectioNFactory, TopicConnectionFactory.
On the right hand pane, click on the ConnectionFactoryname.
And you can see the jndi details for this connectionfactory.

[Bhavesh Dak]

Bhavesh Dak wrote:Look up code [Jars in class path: jnp-client-3.2.1.jar, jboss-common-3.2.1.jar]

try {
			Hashtable env = new Hashtable();
			env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
			env.put(Context.PROVIDER_URL, "jnp://localhost:1099/");

			InitialContext intCtx = new InitialContext(env);
			Object obj = intCtx.lookup("ConnectionFactory");
		} catch (NamingException e) {
			e.printStackTrace();
		} 

Getting following Exception
javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1058)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1127)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:478)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471)
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive(Native Method)
at java.net.DatagramSocket.receive(Unknown Source)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1038)
... 5 more

[Bhavesh Dak]

Bhavesh Dak wrote:Look up code [Jars in class path: jnp-client-3.2.1.jar, jboss-common-3.2.1.jar]

try {
			Hashtable env = new Hashtable();
			env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
			env.put(Context.PROVIDER_URL, "jnp://localhost:1099/");

			InitialContext intCtx = new InitialContext(env);
			Object obj = intCtx.lookup("ConnectionFactory");
		} catch (NamingException e) {
			e.printStackTrace();
		} 

Getting following Exception
javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1058)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1127)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:478)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471)
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive(Native Method)
at java.net.DatagramSocket.receive(Unknown Source)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1038)
... 5 more