Sun Microsystems, Inc.

David Penkler

Mark Allan Kampe

Frederic Herrmann

Christian Jacquemot

Francois Armand

Michel Gien

David F Campbell

Lawrence E Baltz

Rebecca A Ramer

Jean-Marc Fenart

The present invention provides a system and method within a high availability network for monitoring and managing cluster membership. The cluster membership monitor provides the ability to maintain a list of current cluster members, monitor status of each peer node on the cluster, stay apprised of each nodes viability, elect a master node for the cluster when necessary, and coordinate reformation as members join and leave the cluster.

Cluster membership monitor

The present invention describes a method and system for achieving high availability in a networked computer system. In particular, the method for achieving high-availability is executed in a networked computer system. The networked computer system includes nodes connected by a network. The method includes using high-availability-aware components to represent hardware and software in the networked computer system, managing the components to achieve a desired level of redundancy, and monitoring health of the networked computer system, including health of components and nodes. The method further includes detecting a failure in the networked computer system. Failures detected by the method include failures of a component and/or node. Finally, the method includes recovering from the failure by performing an appropriate failure recovery procedure.

Method and system for achieving high availability in a networked computer system

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Meylan, France

David Penkler