A Centralized Server Based Cluster Integrated Protocol in Hybrid P2P Systems

P2P systems became popular for attaining high performance price ratio by effectively using several desktop computers. These systems can be used to construct a sharing file system which aggregates the storage capacities of several peers. DHT based approaches combined with clustering mechanisms are playing significant role to build scalable wide area P2P systems. In this paper, two-layer hybrid P2P system is presented, in which top layer combines the clusters as virtual nodes in a Chord network. The cluster layer implements a centralized server approach to maintain the nodes within that cluster. This helps to minimize the influence of frequent peer arrivals and departures on the dynamic system. It also reduces look up latency in the whole system. Focus here is to simplify the maintenance of the cluster.