If you look at the docs for mod_unique it will generate a unique number in a properly configured server farm making it a good candidate for this process if you are worried about getting a unique number across several systems.
> -----Original Message----- > From: Perrin Harkins [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, April 30, 2002 2:44 PM > To: David Jacobs > Cc: [EMAIL PROTECTED] > Subject: Re: Cheap and unique > > > David Jacobs wrote: > > I'm converting a few CGI scripts that used the PID as a > cyclical unique > > number (in concert with TIMESTAMP - so it was TIMESTAMP.PID). > > > > Our goal is to find a replacement function that is extremely cheap > > (cheaper than say, random(1000000)) and will never repeat. > Any ideas? > > Yes, mod_unique_id will do that, as will Sys::UniqueID and > Data::UUID on > CPAN. Of course that random function is probably very > lightweight, but > it's not actually unique. > > - Perrin > >
