Pacemaker - high-availability resource manager for small or large clusters
- detection and recovery of node or application failures
- “dry run”
- XML (CIB) wrapped in shell (
crmsh) or GUI tools - combined with one of:
- Corosync
- Heartbeat
Corosync
- cluster executive
- cluster communication system
- messaging, membership and quorum info
crmsh - CLI tool for managing
- Pacemaker
- Corosync
- Resource agents (wrapper scripts)