Rui Oliveira

Citation:

Correia A, Sousa AL, Soares L, Pereira JO, Moura F, Oliveira R.  2005.  Group-based replication of on-line transaction processing servers. Proceedings of 2nd Latin-American Symposium on Dependable Computing (LADC). 3747

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Abstract:

Several techniques for database replication using group communication have recently been proposed, namely, the Database State Machine, Postgres- R, and the NODO protocol. Although all rely on a totally ordered multicast for consistency, they differ substantially on how multicast is used. This re- sults in different performance trade-offs which are hard to compare as each protocol is presented using a different load scenario and evaluation method. In this paper we evaluate the suitability of such protocols for replication of On-Line Transaction Processing (OLTP) applications in clusters of servers and over wide area networks. This is achieved by implementing them using a common infra-structure and by using a standard workload. The results allows us to select the best protocol regarding performance and scalability in a demanding but realistic usage scenario.

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