Software Replication in Three-Tiers Architectures: Is It A Real Challenge?

Authors:
C. Marchetti
Affiliations:
-
Venue:
FTDCS '01 Proceedings of the 8th IEEE Workshop on Future Trends of Distributed Computing Systems
Year:
2001

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Abstract

This paper is a first attempt to study the problem of handlingsoftware replication in three tiers architectures. Inparticular a study based on sychronization and communicationpatterns imposed by replication is presented. Weshow how the complexity of the replication scheme is affectedby the determinitic (or not) behavior of the membersof the backtier. We also give two generic synchronizationand communication patterns used in two and three tiersreplication. Well-known schemes such us active and passivereplication are particular instances of these genericpatterns.