R. Jiménez-Peris, M. Patiño-Martínez, Bettina Kemme, G. Alonso
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Improving the scalability of fault-tolerant database clusters
Replication has become a central element in modem information systems playing a dual role: increase availability and enhance scalability. Unfortunately, most existing protocols increase availability at the cost of scalability; This paper presents architecture, implementation and performance of a middleware based replication tool that provides both availability and better scalability than existing systems. Main characteristics are the usage of specialized broadcast primitives and efficient data propagation.