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Interest Driven Large Scale Pub/Sub Systems

P2P overlay networks is an effective means for building Internet-scale distributed applications, and in particular those involving group-based information sharing. A key pre-requisite for supporting such applications on top of the overlays is the ability to efficiently distribute multicast messages to multiple subscribers dispersed across numerous multicast groups. In this talk I will present Gravity, a P2P publish/subscribe system that achieves that by dynamically organizing peers with similar subscriptions into dissemination structures which preserve locality in the subscription space. In doing so, Gravity is able to significantly reduce the message propagation costs by taking advantage of the subscription correlation (as found in many large-scale group-based applications).
I will also present my recent work in SICS on a similar publish/subscribe system which operates on top of a gossip-based P2P overlays.

    Short Biographical Note:

    Sarunas Girdzijauskas is a post-doctoral researcher in the Computer Systems Laboratory at the Swedish Institute of Computer Science (SICS). He got his PhD from Ecole Polytechnique Fédérale de Lausanne (EPFL) in March 2009. His research focuses on large-scale distributed systems, peer-to-peer topologies, Small-World phenomenon in peer-to-peer overlays, scalable publish/subscribe systems and content distribution.

    Seminar by Sarunas Girdzijauskas – Tuesday 17 November, 10.30am
    INRIA Rennes – Bretagne Atlantique, Salle Minquiers