Designing Distributed Database Systems for Efficient Operation
Sangkyu Rho, Salvatore March
Distributed database systems can yield significant cost and performance advantages over centralized systems for geographically distributed organizations. The efficiency o f a distributed database depends primarily on the data allocation (data replication and placement) and the operating strategies (where and h ow retrieval and update query processing operations are performed). W e develop a distributed database design approach that comprehensively treats data allocation and operating strategies, explicitly modeling their interdependencies for both retrieval and update processing. W e demonstrate that data replication, join node selection, and data reduction b y semijoin are important design and operating decisions that have significant impact on both the cost and response time of a distributed database system.
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