An Autonomic Peer-to-Peer Architecture for Hosting Stateful Web Services

In this paper we present an autonomic Web services architecture that manages both the performance of service containers and the interconnection of those containers into a service overlay network. The advantages of this approach include the easing of management tasks through the autonomic systems ability to self-configure, self-optimise and self-heal. We also benefit from improved resilience and anticipate an improvement in overall performance. In our architecture we incorporate a structured distributed hash table peer-to-peer overlay network within our autonomic Web services container. Our architecture is inherently non-hierarchical, widely distributed and enables SLA compliant deployment of WSRF services. We have simplified the management of such a system by adhering to autonomic principles, and we maintain the performance of the system by tightly integrating SLA compliance and migrating services between containers to preserve QoS. We have developed a workable system for both service deployment and migration without the need for global state.