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High availability is a crucial aspect of any website or web application, as it ensures that the website is always available and accessible to users, even in the event of server failures or other disruptions. One effective way to achieve high availability is through the use of heartbeat, a software program that monitors the status of servers in a network …

HAProxy is a free Open Source software act as a load balancer and proxy for TCP and HTTP application such as Apache. HAProxy was written in 2000 by Willy Tarreau,a core contributor to the Linux kernel, who still maintains the project. In this article we will setup HAProxy on a Centos 7. Previously we have setup MySQL clustering on Centos …