Naming service troubleshooting tips

Overview

The naming Java EE service publishes and provides access to resources such as...

• connection pools
• enterprise beans
• message listeners

Resource access problems can involve issues with the naming service.

Investigate problems with the WAS Naming service

Check JVM logs on the server hosting the resource and look for messages starting with NMSV.

Run dumpNameSpace to view objects in the WAS namespace, including directory path and object name.

The dumpNameSpace tool does not dump all objects in the distributed namespace. It only dumps objects in the local namespace of the process against which the command was run.

If the object a client needs to access does not appear, use the admin console to verify that:

• The server hosting the target resource is started.

• The Web module or EJB container, if applicable, hosting the target resource is running.

• The JNDI name of the target resource is correct and updated.

• If the problem resource is remote, that is, not on the same node as the Name Server node, that the JNDI name is fully qualified, including the host name.

  This especially applies to multiple-server configurations.

View detailed information on the runtime behavior of the Naming service by enabling trace on the following components and reviewing the output:

• com.ibm.ws.naming.*
• com.ibm.websphere.naming.*

If we see an exception that appears to be CORBA-related, look for a naming-services-specific CORBA minor code, further down in the exception stack, for information on the real cause of the problem. For a list of naming service exceptions and explanations, see class...

com.ibm.websphere.naming.WsnCorbaMinorCodes

If none of these steps solve the problem:

1. Are you unable to look up an object hosted by WAS from a servlet, JSP file, or other client?
2. Check to see if the problem has been identified and documented.

3. Contact IBM support.

IBM Support has documents that can save you time gathering information needed to resolve this problem. Before opening a PMR, see the IBM Support page.

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Related tasks

Use naming

 

Related information

Additional Application Programming Interfaces (APIs)