In previous part we’ve set pacemaker to work with apache, tomcat and postgresql. Only thing left to manage is database synchronization between nodes. We’ve set postgresql to run only on active node. Therefore pasive node doesn’t have data which are up to date in situation when it has to become active. There are several possibilities […]

In this part of the High-Availability series I’ll show you how to install and configure HA software on your machines. Preconditions We assume that we have two nodes with Ubuntu 12.04.1 server preinstalled. Also there are Tomcat 7, Apache 2, Postgresql 9.1 installed on the nodes. Network settings First of all we have to set […]