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12th Pacific Rim International Symposium on Dependable Computing (PRDC'06)
A Replication Model for Trading Data Integrity against Availability
Riverside, California
December 18-December 20
ISBN: 0-7695-2724-8
Johannes Osrael, Vienna University of Technology
Lorenz Froihofer, Vienna University of Technology
Karl M. Goeschka, Vienna University of Technology
Higher availability and better performance of datacentric applications can be achieved by replication of objects or data items. If data integrity, a correctness criterion for such systems, needs to be maintained even during degraded situations (node or link failures) the system soon becomes (partially) unavailable. However, some applications exist (e.g., in control engineering) where data integrity can be relaxed for higher availability during degraded situations. Traditional replication models do not support the balancing of these two properties. In this paper1, we present a novel replication model that (i) allows replicas to diverge if data integrity can be temporarily relaxed and (ii) re-establishes both replica consistency and data integrity during repair time.
Citation:
Johannes Osrael, Lorenz Froihofer, Karl M. Goeschka, "A Replication Model for Trading Data Integrity against Availability," prdc, pp.377-378, 12th Pacific Rim International Symposium on Dependable Computing (PRDC'06), 2006
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