Troubleshooting transactions

Use this overview task to help resolve a problem that you think is related to the Transaction service.

About this task

To identify and resolve transaction-related problems, you can use the standard WebSphere® Application Server RAS facilities. If you encounter a problem that you think might be related to transactions, complete the following steps:

Procedure

  1. Check for transaction messages in the administrative console.

    The Transaction service produces diagnostic messages prefixed by "CWWTR". The error message indicates the nature of the problem and provides some detail. The associated message information provides an explanation and any user actions to resolve the problem.

  2. Check for Transaction messages.

    Check the error log.

  3. Check for more messages in additional places.

    Check for more messages in other potential message output repositories. For more information about a problem, check the standard output file configured by your administrator. This will contain more error messages and other detailed information about the problem.

  4. Check for messages related to the application server transaction log directory when the problem occurred.
    Note: If you changed the transaction log directory and a problem caused the application server to fail (with in-flight transactions) before the server was restarted properly, the server will next start with the new log directory and be unable to automatically resolve in-flight transactions that were recorded in the old log directory. To resolve this, you can copy the transaction logs to the new directory then stop and restart the application server.
  5. Check the RRS logs for any transaction activity involving RRS-compliant resources. IBM® WebSphere Application Server for z/OS® is capable of supporting both XA and RRS resource managers, and of coordinating a mix of RRSTransactional resource managers and XA capable resource managers under the same global transaction. If your installation uses XA resource managers, RRS resource managers, or a mixture of both, you can use the administrative console to view transaction logs that contain information about all transactions. You can find additional information about RRS transactions by using the RRS panels.
  6. Check the hints and tips for troubleshooting transactions.

    See the topic about Transaction troubleshooting tips for an ongoing collection of troubleshooting tips, based on test and user experience. If you have suggestions for other tips, please let the IBM WebSphere writing team know.




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Last updated: Oct 22, 2010 12:21:29 AM CDT
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