Providing figure of merit vote from application executing on...

Details Providing figure of merit vote from application executing on... Providing figure of merit vote from application executing on...

2006-07-11

2006-07-11

Thomson, William (Department: 2194)

Electrical computers and digital processing systems: interprogra

Interprogram communication using message

C709S220000, C709S223000

Reexamination Certificate

active

07076783

ABSTRACT:
A quorumless network cluster provides a highly available system by addressing the partition-in-space and partition-in-time problems in network clusters.In a particular solution, a cluster manager (CM) can use disk based messaging to manage the operation of the cluster. Each node within the cluster must have access to a shared disk to operate within the cluster.A particular methodology can operate the cluster in a closed loop between nodes1to N. If a node fails to receive a heartbeat message from its predecessor in the loop, it initiates a cluster reconfiguration by sending a reconfiguration message to each other node in the cluster.The quorumless cluster can also include a common storage for a cluster definition. Each node may provide a proposed change to the cluster definition, however only a single coordinator node may update the cluster definition and apply the suggested changes.

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