Pacemaker_(software)
Pacemaker (software)
Open source high availability resource manager software
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.[3]
It implements several APIs for controlling resources, but its preferred API for this purpose is the Open Cluster Framework resource agent API.