Tracing a rule

Tracing enables you to follow the flow of events through each rule phase. Tracing the execution of a rule also helps Knowledge Base developers to find logical errors or enhance performance. {

The MRL compiler (mccomp) generates rule trace code that contains the following fields:

• Message id (identifying the type of statement being executed)
• Source file name
• Source line number
• Name of the rule
• Reference to the main event being processed
• Class name of the main event being processed

This code is generated each time the compiler is run. Impact on performance is minimal when rule trace is not enabled.