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Node clustering is an effective solution for achieving good performance and high reliability for peer-to-peer (P2P) systems. To improve the performance of a clustered P2P system, it is important to balance the service load among the clusters in the system. In this paper, we describe a diffusive load balancing scheme for clustered P2P systems, which dynamically adjusts the size of the clusters, by moving nodes among the clusters, based on their service demands and node resource capacities. Our simulations show that the proposed load balancing scheme significantly improves the performance of a P2P system in terms of balanced available capacity.
Date of Conference: 8-11 Dec. 2009