Pacemaker – The Open Source, High Availability Cluster

Overview

Pacemaker is a Open Source, High Availability cluster. Pacemaker and in general Linux clustering have been around for a very long time. Both matured greatly over the past 10 to 15 years.Today Pacemaker is a very simple streamlined bundle that includes the Pacemker clustering, fencing agents, resource agents and the heartbeat (corrosync). Pacemaker is available in Red Hat Enterprise Linux 7 as the High Availability option. In this article I will provide an overview of Pacemaker and a tutorial on how to setup a two-node pacemaker cluster for Apache using shared storage.

fence-example-fc
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