I just have uploaded to SVN a new feature on uri_db module. A couple of statistics have been added to module. These are:
positive_checks: It is an incremental variable, which holds the count of requests which when checked, have returned a positive match.
negative_checks: It is an incremental variable which holds the count of requests which when checked, have returned a negative match; it covers cases when no credentials are found, and cases when there is not a valid match.
These variables can be viewed using the command get_statistics of Management Interface.
Later, I will be adding features as variable reset at execution time; these variables would be useful for example, to detect cases as Denial of Service attempts.