JTangPS: Content-based publish/Subscribe over structured P2P networks

Abstract

Publish/subscribe systems have been adopted by many distributed applications to deliver data from publishers to subscribers in an anonymous fashion. However, existing content-based publish/subscribe systems suffer from limitations in scalability. This paper introduces a novel architecture for implementing a content-based publish/subscribe system, called JTangPS, on top of structured P2P networks. JTangPS achieves scalability by mapping subscriptions and events to rendezvous nodes in terms of the combination of domain schema identifier, number of attributes and the first attribute name in the subscription or event. JTangPS enhances routing efficiency by exploiting the embedded multicast tree on P2P networks and by aggregating event delivery messages. Experimental results using a variety of synthesis datasets demonstrate the scalability of system with large numbers of users. © 2008 Springer-Verlag Berlin Heidelberg.