I don't know if anyone else who followed-up on this thread has ever implemented a high traffic web site of this calibre, but the original poster is really just trying to band-aid a poor session management mechanism into working for traffic levels it wasn't really intended for.
While he may still need a large amount of DB muscle for other things, using PHP/MySQL sessions for a site that really expects to have 30,000 different HTTP clients at peak instants is not very bright. We have cookies for this. Server-side sessions are a great fallback for paranoid end-users who disable cookies in their browser, but it is my understanding that PHP relies on a cookie-based session ID anyway? I tried to follow up with the original poster directly but I can't deliver mail to his MX for some reason. *shrug* Look into signed cookies for authen/authz/session, using a shared secret known by all your web servers. This is not a new concept, nor a difficult one. It can even be implemented using PHP, though a C apache module is smarter. -- Jeff S Wheeler [EMAIL PROTECTED] Software Development Five Elements, Inc http://www.five-elements.com/~jsw/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]