System Level Procedures › System Level Procedures › Activity Log

Activity Log

The stream of output messages to the activity log provides a serial record of all activity in the system. Therefore, it is an ideal source of real-time information about system events. While the log is accessible for on-line review by real operators, there is a special background virtual user environment called LOGPROC that directly accesses every message written to the activity log through special NCL verbs:

• The LOGFILES Customizer parameter group nominates the name of a procedure that is to act as the LOGPROC procedure. As such, it can execute these special verbs to see and modify messages destined for the activity log.
• LOGPROC is a system level procedure (one per system) that can act as a central intelligence point to monitor events being reported to the log. As such, it can observe and react to unusual or critical conditions, and provide a platform for automatic recovery action.