Wordpress Load balancing: 2 web servers 1 MySQL without any Cloud services

This is the exact config that I need to configure a load balancing without other cloud services like Amazon, rackspace or GoGrid, completely customized. I put my question on stackoverflow.com but no luck, so I put it on Quora.com and immediately I got response: My Notes: The load balancer is done by my colleagues so I am not sure what is the config of it. But one thing to note: Your LB should enable "session stickiness" so that the session will follow visitor. By the way, I am using Round-robins. Session: Actually I did not use session, but it seems that other plugins (like WPML) will use it. If I use Apache load balancer, when I go to wp-admin through load balancing IP, I will not able to login, given the username and password is the same. I will be redirected to login page. So ask your load balancer providers or check your load balancer config and see how to manage the "Session Stickiness" issue. Shared folder: your wp-content/uploads folder...