The replicator coordination design pattern

Abstract

The problem domain addressed in this paper refers to scenarios where several databases, which reside on different computers, platforms or database systems have to be kept synchronized. A solution design to this problem is presented as a coordination design pattern. A coordination design pattern describes the design of a solution to a recurring problem from distributed or parallel processing, where the solution is based on multiple processes that are coordinated using shared data objects. The coordination framework Corso is introduced as a possible implementation environment. The design pattern called Replicator is motivated with a scenario using distributed library databases.