Third International Workshop on Distributed Event-Based Systems
نویسندگان
چکیده
Content-based routing realized through static networksof brokers usually exhibit nice performance when sub-scribers with similar interest are physically close to eachother (e.g. in the same LAN, domain or in the same ge-ographical area) and connected to a broker which is alsonearby. If these subscribers are dispersed on the Inter-net, benefits of such routing strategy significantly decrease.In this paper we present a Topology Management System(TMS), a component of a content-based pub/sub broker. Theaim of a TMS is to mask dynamic changes of the brokers’topology to the content-based routing engine. TMS relies ona self-organizing algorithm whose goal is to place close (interms of TCP hops) brokers that manage subscribers withsimilar interests keeping acyclic the topology and withoutcompromising network-level performance. TMS is also re-silient to broker failures and allows brokers join and leave.
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