Vivek Khera <[EMAIL PROTECTED]> writes: > The front-end small processes get to deal with your dialup customers > trickling down the data since it buffers your backend for you.
Huh. Well, I used to think this. But I think I was wrong. I used to have apache proxy servers running in front of the mod_perl apache servers. The proxy servers handled image and static html requests, and proxied any dynamic content to the mod_perl servers. In fact most web pages are only a few kilobytes, and you can easily configure the kernel buffers on the sockets to be 32kb or more. So the proxies would only come into play when there was a really large dynamic document, something that should probably never happen on a high volume web site anyways. I think the main source of the benefit people see from this setup is the static content. For that you get a bigger kick out of separating the static content onto entirely separate servers, preferably something slim like thttpd and just exposing the mod_perl/php/whatever servers directly. The one thing I worry about exposing the dynamic servers directly is susceptibility to dos or ddos attacks. Since all someone has to do to tie up your precious heavyweight apache slot is make a connection, one machine could easily tie up your whole web site. That would be a bit harder if you had hundreds of slots available. Of course even so it's not hard. -- greg ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
