How to run Forms Runtime Diagnostics (FRD) in 10gR2 Forms.

FRD is a runtime event-based logging system intended to aid in the debugging of Forms
applications. FRD is enabled at runtime on a user by user basis. When a form is run with
FRD enabled, a combination of external user-application interactions and internal Forms
processing events are written in chronological order to a log on the file system. These events
can then be analyzed by both application developers, and Oracle support staff. FRD is not
intended to be used as a performance benchmarking tool or as a mechanism for gauging code
coverage.
FRD generates extensive output useful for analysis and debugging, and it is therefore
recommended FRD be utilized as a logging mechanism only when specific issues are
encountered.

To implement FRD do the following:

In the $ORACLE_HOME/forms/server/default.env (or whatever env file you are using), add the environment variable FORMS_TRACE_DIR specifying a physical directory on the Application Server machine. The FRD log file will be written into the directory specified.

In the formsweb.cfg create a config section something like: [my_frd] otherparams=record=collect log=my_frd.txt form=my_form.fmx

Then call this from a url using the config section.
Example: http://my_machine:my_port/forms/frmservlet?config=my_frd