Mobility

An Efficient Replica Creation Scheme in P2P Network

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Executive Summary

There's one major problem in the unstructured P2P file sharing systems, which is their heavy network traffic. A potential solution is to use replication technology. The objective of replication is to create enough replicas to let nodes in P2P systems get required files with only a few hops. Replication is widely used in the distributed database systems and gains great success. However, processing replication in unstructured P2P network is very challenging because a P2P system is a dynamic and decentralized system. In this paper, the authors present an efficient hierarchical replica creation scheme based on the track and popularity of files, which includes two strategies, one is super node layer replica creation and the other is bottom layer replica balancing.

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