Yu, Shui and Zhou, Wanlei 2004, A novel middleware based web database model, in IEEE/WIC International Conference on Web Intelligence (WI 2004) : Beijing, China, September 20-24, 2004 : proceedings, IEEE Computer Society, Los Alamitos, Calif., pp. 533-536.
In this paper, we propose a novel model for web-based database systems based on the multicast and anycast' protocols. In the model, we design a middleware, castway, which locates between the database server and the Web server. Every castway in a distributed system operates as a multicast node and an anycast node independently, respectively. The proposed mechanism can balance the workload among the distributed database servers, and offers the "best" server to serve for a query. Three algorithms are employed for the model: the requirement-based probing algorithm for anycast routing, the atomic multicast update algorithm for database synchronization, and the job deviation algorithm for system workload balance. The simulations and experiments show that the proposed model works very well.
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Field of Research
080699 Information Systems not elsewhere classified
Socio Economic Objective
890299 Computer Software and Services not elsewhere classified
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