A clustered computer system includes multiple computer systems (or nodes) on a network that can become members of a group to work on a particular task. Each node includes group state data that represents the status of all members of the group. A group state data update mechanism in each node updates...http://www.google.se/patents/US6625639?utm_source=gb-gplus-sharePatent US6625639 - Apparatus and method for processing a task in a clustered computing environment
