Data processing: database and file management or data structures – Database design – Data structure types
Patent
1996-07-01
1998-04-14
Beausoliel, Jr., Robert W.
Data processing: database and file management or data structures
Database design
Data structure types
707 10, 707202, G06F 1118
Patent
active
057403481
ABSTRACT:
A system, method and computer program product for ensuring that a replicated computer database does not encounter a "split brain" problem by replicating the database and requiring a replica quorum wherein at least (50% +1) of the replicas are accessible and in agreement. When a replica quorum in not obtainable, but 50% of the copies of the data are in agreement, an external source, or "mediator", is called upon to provide a deciding vote (+1) to ensure that the data can be trusted.
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Cunliffe Joseph E.
Passmore Dale R.
Baderman Scott T.
Beausoliel, Jr. Robert W.
Kubida William J.
Langley Stuart T.
Sun Microsystems Inc.
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