P2PENS: Content-based publish-subscribe over Peer-to-Peer network

Abstract

Content-based publish/subscribe systems have recently received an increasing attention. Efficient routing algorithms and selforganization are two challenges in this research area. Peer-to-peer network topologies can offer inherently bounded delivery depth, load sharing and self organization. In this paper, we present a content-based publish/subscribe system built on top of a dynamic peer-to-peer overlay network. A scalable routing algorithm using Pastry network is presented that avoids global broadcasts by creating rendezvous nodes. Selforganization and fault-tolerance mechanisms that can cope with nodes and links failures are integrated with the routing algorithm resulting in a scalable and robust system. The experiment results reveal that our system has better routing efficiency, lower cost and less routing table size at the event brokers. © Springer-Verlag 2004.