Pattern based configuration generation for highly available COTS components based systems

摘要

Context: Service availability is an important quality factor that distinguishes between providers. High availability is achieved when the service is available at least 99.999% of the time. The Service Availability Forum has defined several middleware services, among them the Availability Management Framework (AMF) aims at ensuring the high availability of services provided by applications under its control. AMF requires a configuration. The design of an AMF configuration is complex and error prone. For improving the quality of such configurations, an automated generation technique has been proposed in the literature. However, this technique may generate several configurations among which some may not meet the required level of availability. Therefore, the generated configurations are evaluated using availability analysis tools to select an appropriate one for deployment.