10 Troubleshooting The WebLogic Tuxedo Connector

This chapter provides WebLogic Tuxedo Connector troubleshooting information for WebLogic Server 12.1.3.

This chapter includes the following sections:

Monitoring the WebLogic Tuxedo Connector

The WebLogic Tuxedo Connector uses the WebLogic Server log file to record log information. To record log information you must:

Set Trace Levels (Deprecated)

Because TraceLevel is no longer supported, use system debugging. By default all the debug tracing is off. For information on how to set debug, see System Level Debug Settings.

For more information about setting WebLogic Server properties, see How to Set Oracle WebLogic Tuxedo Connector Properties.

Enable Debug Mode

Use the following procedure to specify that trace information is written to the log file:

  1. Click the Server node in the left pane.

  2. Select your server in the left pane.

  3. Select Logging.

  4. On the General page:

    1. Check Debug to Stdout

    2. Set Stdout severity threshold to Info.

Enable a User Data Dump

To enable dumping of user data, add the following line to the java.weblogic.Server command.


Enabling this causes user data to be dumped after the connection is connected. If no other debugging properties are enabled, then this will be the only WTC information dumped, except normal WTC error/informational messages. The dump is available in the WLS server log file.

The dump has the following format.

  • For outbound messages

    Outbound UDATA: buffer type (<type>, <subtype>)
    +++++ User Data(size) +++++
  • For inbound messages

    Inbound UDATA: buffer type (<type>, <subtype>)
    +++++ User Data(size) +++++

Frequently Asked Questions

This section provides solutions to common user questions.

What does this EJB Deployment Message Mean?

When I build the simpserv example, I get the following error:

<date> <Error> <EJB> <EJB Deployment: Tolower has a class weblogic.wtc.jatmi.tpserviceHome which is in the classpath. This class should only be located in the ejb-jar file.> 

This error message can be ignored for this release of the WebLogic Tuxedo Connector. The EJB wants all of the interfaces for an EJB call in the EJB jar file. However, some interfaces for the WebLogic Tuxedo Connector are implemented through the CLASSPATH, and the compiler throws an exception. When the EJB is deployed, the compiler complains that the EJB cannot be redeployed because some of its classes are found in the CLASSPATH.

How Do I Start the Connector?

Releases prior to WebLogic Server 7.0 used a WebLogic Server Startup class to start a WebLogic Tuxedo Connector session and a WebLogic Server Shutdown class to end a session. In WebLogic Server 8.1, WebLogic Tuxedo Connector sessions are managed using a WTC server.

  • A WebLogic Tuxedo Connector session is started when a configured WTC server is assigned to a selected server instance.

  • A WebLogic Tuxedo Connector session is ended by removing a WTC server from the WebLogic server instance or when you shut down the WebLogic server instance.

How do I Start the Tuxedo Queuing Bridge?

The Tuxedo queuing bridge is started if the Tuxedo queuing bridge and redirections configurations exist in your WTC server and the WTC server is assigned to a selected server

How do I Assign a WTC Server to a Server Instance?

The WebLogic Server Administration Console displays an exception when I try to assign my WTC server to a server instance. What should I do?

Make sure you have a valid WTC server configured. Each WTC server must have one or more local Tuxedo access points configured before it can be assigned to a server instance. Your server log will display the following:

<Apr 22, 2002 4:21:35 PM EDT> <Error> <WTC> <180101> <At least one local domain has to be defined.> 

How do I Resolve Connection Problems?

I'm having trouble getting a connection established between Oracle WebLogic Tuxedo Connector and Tuxedo. What should I do?

  • Make sure you have started your Tuxedo server.

  • Set the TraceLevel and enable Debug mode. Repeat the connectivity test and check the WebLogic Tuxedo Connector and Tuxedo log files for error messages.

  • Avoid using machine names or localhost. Always use an IP address when specifying a network location.

  • Check your AclPolicy and CredentialPolicy attributes. If your AclPolicy is LOCAL, you must register the remote domain DOMAINID as a WebLogic Server user. For more information, see Section 3.5, "User Authentication".

  • If you are migrating from WebLogic Server 6.x and your applications use security, you need to set PasswordKey as a WebLogic Server property. For more information, see Section 2.2.5, "How to Set Oracle WebLogic Tuxedo Connector Properties".

  • Check the WebLogic Tuxedo Connector configuration against the Tuxedo remote domain. The remote domain must match the name of a remote domain configured in Oracle WebLogic Tuxedo Connector.

    For example: If the name simpapp is configured in the Tuxedo DMCONFIG *DM_LOCAL_DOMAINS section, then this name must match the name in your remote Tuxedo access point Access Point Id attribute.

  • Request assistance from BEA Customer Support.

How do I Migrate from Previous Releases?

For more information, see Upgrading Oracle WebLogic Server.