Autonomic SLA Management in Federated Computing Environments

Federated computing environments offer requestors the ability to dynamically invoke services offered by collaborating providers in the virtual service network. Without an efficient resource management, however, the assignment of providers to customer´s requests cannot be optimized and cannot offer high reliability without relevant SLA guarantees. We propose a new SLA-based serviceable metacomputing environment (SERVME) capable of matching providers based on QoS requirements and performing autonomic provisioning and deprovisioning of services according to dynamic requestor needs. This paper presents the new autonomic SLA management and the object-oriented SLA model for large-scale service-oriented systems. An initial reference implementation in the SORCER environment is also described.