Talks and Poster Presentations (with Proceedings-Entry):
J. Osrael, L. Froihofer, K. Göschka:
"Availability/Consistency Balancing Replication Model";
Talk: 21st IEEE International Parallel & Distributed Processing Symposium,
Long Beach, CA, USA;
- 2007-03-30; in: "Proceedings of the 21st DPDNS",
Replication combined with explicit manegement of data integrity constraints can be used to enhance availability of object-oriented, data-centric distributed systems when node ans link failures occur. Our approach enhances availability by temporarily relaxing non-critical data integrity constraints during degraded situations. This requires new kind of optimistic replication protocols that support the configuration of this trade-off. The contribution of this paper is a replication model called Availability/Consistency Balncing Replication Model that allows replicas to diverge in degraded situations if data integrity can be temporarily relaxed and re-establishes both replica consistency and data integrity during repair time. The Primary-per-Partiition -Protocol and Adaptive Voting are two concrete protocols following our model. The feasibility of our approach has been shown by several prototype implementations.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Project Head Karl Michael Göschka:
Ausfallsichere Verteilte Systeme
Created from the Publication Database of the Vienna University of Technology.