> > >>Mod_Perl hangs on to it's PID, so it's no longer unique. (I _believe_ >> > >But the timestamp will make it unique - as long as you're not serving >several requests per second. > > I'm building the system so I can be confident up to thousands of requests/second. Looks like unique_id_module is good for around 65K requests, which is fine ;)
A global counter hanging around is a good solution, but not perfect if we deploy on multiple servers. It appears the mod_unique module uses timestamp, a PID, a counter and the IP address, which is fine. David
