An Architecture for Highly Available Wide-Area Service Composition

Service composition provides a flexible way to quickly enable new application functionalities in next generation networks. This paper focus on the scenario where next generation portal providers "Compose" the component services of other providers. Architecture has developed based on an overlay network of service clusters to provide failure-resilient composition of services across the wide-area Internet: these algorithms detect and recover quickly from failures in composed client sessions. This paper presents an evaluation of the architecture whose overarching goal is quick recovery of client sessions.