Jeff, On Thu, Jul 15, 2010 at 10:53 AM, Jeff Trawick <trawick@xxxxxxxxx> wrote: > AFAIK the only thing you can do with prefork to avoid overrunning the > backend is to set MaxClients no higher than the maximum number of > backend connections. But that's useless when you expect httpd to > forward only a subset of requests to the backend. And even if all the requests go to backend servers, that wouldn't satisfy the requirement of "max per back-end server", MaxClients would only be a "overall max". (I.e. if I have 4 back-end servers, and want 4 max concurrent connections per server, I could set MaxClients to 16, but Apache could at some point in time send more than 4 concurrent connection to a given back-end server.) > Upcoming httpd 2.4 has loadable MPMs that can be switched out just > like regular modules. I hope that vendors provide 2-3 MPMs on Unix, > with a switch as easy as changing the LoadModule directive and > checking the default config for the new MPM. > > But yes, until then this may be a pain to change. Then I'm looking forward to 2.4! Alex -- Orbeon Forms - Web forms, open-source, for the Enterprise - http://www.orbeon.com/ My Twitter: http://twitter.com/avernet --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx