You can select the amount and types of trace data to be collected,
which provides you with the ability to either run your application with minimal
tracing when performance is a priority, or run your application with detailed
tracing when you need to recreate a problem and collect additional diagnostic
information.
The error log stream, the CTRACE data set for WebSphere
® Application
Server for z/OS
®,
and the master console are primarily intended for monitoring or recording
diagnostic data for system components and critical applications. Depending
on your installation's configuration, directing application messages and data
to these resources might have an adverse affect on system performance. For
example, if you send application data to the CTRACE data set, trace entries
in that data set might wrap more quickly, which means you might lose some
critical diagnostic data because the system writes new entries over existing
ones when wrapping occurs. Use this logging support judiciously.
Note: You
can only use WebSphere Application
Server for z/OS support
for logging messages and trace data for Java™ applications, not for Java applets.