Have you searched the archives? There was a thread talking about load balancing earlier in the year, see
http://groups.yahoo.com/group/modperl/message/49334
for example which might help.
Thanks, I hadn't seen this thread. The pointer to the URL Rewriting Guide were helpful, but I'm still not sure what's a good strategy for querying the backend servers about their current load?
-- Ray Zimmerman / e-mail: [EMAIL PROTECTED] / 428-B Phillips Hall Sr Research / phone: (607) 255-9645 / Cornell University Associate / FAX: (815) 377-3932 / Ithaca, NY 14853