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Linux-HA heartbeat
Heartbeat is a daemon that provides cluster infrastructure (communication and
membership) services to its clients. This allows clients to know about the
presence (or disappearance!) of peer processes on other machines and to easily
exchange messages with them.
Heartbeat still comes with an integrated primitive resource
manager, which basically is just a shell script. This is also
referred to as "v1 style" or "haresources style" configuration.
You might also want to install cluster-glue, heartbeat, resource-agents,
fence-agents.
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