Load balancing is a common solution for distributing web applications horizontally across multiple hosts while providing the users a single point of access to the service. It aims to optimize resource usage, maximize throughput, minimize response time, and avoid overloading any single resource. HAProxy is one of the most popular opensource load balancing software, which also offers high availability and proxy functionality. It’s available for install on many Linux distributions as well as Solaris and FreeBSD. HAProxy is particularly suited for very high traffic websites, and is therefore often used to improve web service reliability and performance for multi-server configurations. This guide lays out the steps for setting up HAProxy as a load balancer on CentOS 7 to its own cloud host which then directs the traffic to your web servers. As a pre-requirement for following this guide, you’ll need to have a minimum of two servers with at...
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