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Improving the QoS of Web Services via Client-Based Load Distribution

Alan Massaru NakaiEdmundo MadeiraLuiz E. Buzato

The replication of a web service over geographically distributed locationscan improve the QoS perceived by its clients. An important issue in sucha deployment is the efficiency of the policy applied to distribute client requestsamong the replicas. In this paper, we propose a new approach for client-basedload distribution that adaptively changes the fraction of load each client submitsto each service replica to try to minimize overall response times. Our resultsshow that the proposed strategy can achieve better response times thanalgorithms that eagerly try to choose the best replica for each client.

http://www.lbd.dcc.ufmg.br/colecoes/sbrc/2011/0043.pdf

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