The purpose of this section is to aid you in understanding why your enterprise application, application server, or WebSphere Application Server is not working and to help you resolve the problem. Unlike performance tuning which focuses on solving problems associated with slow processes and un-optimized performance, problem determination focuses on finding solutions to functional problems.
For tips on investigating common problems organized according to tasks within WebSphere Application server, see Troubleshooting by task.
For tips on how to investigate common kinds of problems based on the component that is causing the problem, see Troubleshooting by component.
If you already have an error message and want to quickly look up its explanation and recommended response, look up the message by expanding the Messages section of the Information Center under Reference > Troubleshooter > Messages.
For help in knowing where to find error and warning messages, interpreting messages, and configuring log files, see Working with message logs.
Difficult problems can require the use of tracing, which exposes the low-level flow of control and interactions between components. For help in understanding and using traces, see Working with trace.
For help in using settings or tools to help you diagnose the problem, see Working with troubleshooting tools. Some of these tools are bundled with the product, and others are freely downloadable.
To find out how to look up documented problems, common mistakes,
WebSphere Application Server prerequisites, and other problem-determination information on the WebSphere Application Server public Web site, or to obtain technical support from IBM, see Obtaining help from IBM.
For current information available from IBM Support on known problems and their resolution, see the IBM Support page. For last minute updates, limitations, and known problems, refer to the Release notes.
IBM Support has documents that can save you time gathering information needed to resolve this problem. Before opening a PMR, see the Must gather documents page for information to gather to send to IBM Support.