Pacemaker (software)

Pacemaker
Written in	C
Operating system	Cross-platform
Type	Group Communication System
License	GNU General Public License Version 2
Website	http://clusterlabs.org

Pacemaker is an open source high availability resource manager software used on computer clusters since 2004. Until about 2007, it was part of the Linux-HA project, then was split out to be its own project.

It implements several APIs for controlling resources, but its preferred API for this purpose is the Open Cluster Framework resource agent API.

Related software

Pacemaker is generally used with Corosync or Heartbeat.