Rui Oliveira

Citation:

Matos M, Sousa AL, Pereira JO, Oliveira R, Deliot E, Murray P.  2009.  CLON: Overlay networks and gossip protocols for cloud environments. Proceedings of On the Move to Meaningful Internet Systems - OTM. 5870

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Abstract:

Although epidemic or gossip-based multicast is a robust and scalable approach to reliable data dissemination, its inherent redundancy results in high resource con- sumption on both links and nodes. This problem is aggravated in settings that have costlier or resource constrained links, as happens in Cloud Computing infrastruc- tures composed by several interconnected data centers across the globe. The goal of this work is therefore to improve the efficiency of gossip-based reliable multicast by reducing the load imposed on those constrained links. In detail, the proposed CLON protocol combines an overlay that gives preference to local links and a dissemination strategy that takes into account locality. Extensive experimental evaluation using a very large number of simulated nodes shows that this results in a reduction of traffic in constrained links by an order of magnitude, while at the same time preserving the resilience properties that make gossip-based protocols so attractive.

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