Tips on Load Balancing a Joomla Cluster with HAProxy

For the past several weeks, I have been working with Joomla in a clustered environment. We have a single load-balancer running HAProxy that sends requests to two web servers synchronized with unison. One server is a hybrid and includes both the MySQL database as well as Apache2/PHP5. The other web server is strictly Apache2/PHP5. We … Read more

Normalize Accept-Encoding Headers via HAProxy for Squid Cache

I noticed that when browsing one of our heavy traffic website’s under different browsers, I would see completely separate versions of a page depending on which browser I used. We use a cluster of Squid servers to cache the many pages of this particular website, but I believed the only thing that needed to happen … Read more

Using the ACL in HAProxy for Load Balancing Named Virtual Hosts

Until recently, I wasn’t aware of the ACL system in HAProxy, but once I found it I realized that I have been missing a very important part of load balancing with HAProxy! While the full configuration settings available for the ACL are listed in the configuration doc, the below example includes the basics that you’ll need … Read more