SOA-Based Service Recovery Framework

SOA (service oriented architecture) has evolved to standardization in the last years. And SOA-based service, as the most popular web service, has developed rapidly together with the security of web service. A SOA-based service recovery framework has been presented in this paper, which satisfied SOA specification and characters. First of all, we proposed a service unit to support service recovery. SOA-based recoverable service is well defined together with the relationship, state and critical degree of the service. Then service state maintenance and monitoring mechanism is given out based on P2P network. When a service is failed, framework can decide a suitable recovery strategy. This paper deeply discusses three methods of service recovery, that is, service migration, service degradation and service reconstruction. Moreover, we detail the design and implementations of these recovery methods, and also the basic algorithm of them. Compared with traditional service, SOA-based service recovery framework has advantages and good prospects in future.