# Multiple rails app hosted on single server **URL:** \ **Category:** Rails\ **Created:** [July 28, 2007, 1:13am UTC](https://www.ruby-forum.com/t/multiple-rails-app-hosted-on-single-server/110611 "2007-07-28T01:13:14Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![chillexistence](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ee7513/32.png) [@chillexistence](https://www.ruby-forum.com/u/chillexistence)\ **Post date:** [July 28, 2007, 1:13am UTC](https://www.ruby-forum.com/t/multiple-rails-app-hosted-on-single-server/110611/1 "2007-07-28T01:13:14Z")
What’s everyone favorite way to do this these days? I have nginx with 4 mongrel processes now which is great for the performance of this 1 rails app I’m running. But to add another rails app to the box would require 4 more mongrels. Each mongrel takes like 20 MB of ram for the ruby VM. Is there a way to run 4 mongrels total but have each mongrel switch on-the-fly to the needed rails app? That way I could run X # of rails apps but always keep the # of mongrels steady at 4. Or, is it better to use fastcgi and forget about mongrels if I want multiple rails apps? Thanks.