April 26, 2013
By Severalnines
This post shows you how to move from a single instance drupal/mysql to a multi-server environment. A well designed multi-server deployment not only allows Drupal to scale, but will also enhance redundancy by removing single points of failure. Components used are Apache, PHP, csync2, lsyncd, Keepalived, HAproxy, MySQL Galera Cluster and ClusterControl.
Our starting point is a single server deployment of Drupal:
