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18 August 2008 Heartbeat release 2.1.4 is now out Download it and install it!

11 October 2007 NEW educational HA/DR Blog hosted by Alan Robertson

9 April 2007 Check out the Cool Heartbeat Screencasts: Installation, Intro to the GUI Part of the Heartbeat Education project

Last site update:
2008-08-28 01:16:44

Designated Coordinator

The Designated Coordinator is a special instance of the ClusterResourceManagerDaemon. It is elected with the help of the list of FullyConnected ClusterNodes from the ClusterConsensusManager and takes on the responsibilities of ResourceAllocation throughout the cluster. All other instances of the ClusterResourceManagerDaemon act as slaves to the Designated Coordinator and must undertake a JoinProtocol by which they register with the Designated Coordinator and receive the latest copy of the ClusterInformationBase.

The Designated Coordinator is also the location of All changes to the ClusterInformationBase, including requests to migrate resources to and from any ClusterNode. The changes are checked for validity and pushed out to all other ClusterNodes if they pass.