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Tracing lets you obtain detailed information about the execution of WebSphere Application Server components, including application servers, clients, and other processes in the environment. Trace files show the time and sequence of methods called by WebSphere base classes; you can use these files to pinpoint a failure. IBM technical support personnel often request trace collection when troubleshooting a problem. If you’re not familiar with the internal structure of WebSphere Application Server, the trace output might not be meaningful to you.