Setting up component trace (CTRACE)

WebSphere® Application Server for z/OS® uses z/OS component trace (CTRACE) facilities to manage the collection and storage of trace data. CTRACE data is written to address space buffers in private (pageable) storage, which can be formatted using IPCS if a dump of the address space is taken. CTRACE data can also be written to trace data sets on disk or tape using an external writer.

Before you begin

Although CTRACE data is primarily output for use by IBM® service personnel, using CTRACE capabilities at your installation allows you to have additional trace data available when a problem first occurs. Because CTRACE efficiently uses system resources, you can collect valuable trace data with minimal impact on performance. For detailed information about the CTRACE facilities, see z/OS MVS™ Diagnosis: Tools and Service Aids, GA22-7589.

About this task

If you choose to write CTRACE data to trace data sets, you must create an external writer. You can set up separate trace data sets for each cell or for each WebSphere Application Server for z/OS release, or you can use a single trace data set for all WebSphere Application Server activity on a particular z/OS system.

Procedure

To implement a CTRACE data trace, read the following articles on preparing and starting CTRACE in your application server:

Results

After you read articles you will be able to implement CTRACE data tracing in your applications.