The research and implementation of a CORBA-based architecture for adaptive fault tolerance in distributed systems

The new generation of complex mission-critical systems (such as air traffic control systems, security monitoring systems and real time systems) is inherently distributed and operates in highly dynamic environments. Fault tolerance is a main means of assurance of system reliability. Single fault tolerance policy can not satisfy the dynamic changes of these systems, so their fault tolerance mechanism should provide more intelligence to adapt them to be in response to the changes in system resource, application demands and user requirements and improve resource utilization. This paper presents a CORBA-based architecture called AFTLSDS for adaptive fault tolerance in distributed systems and its design can satisfy the requirement of new generation complex mission-critical systems. We put emphasis on its component and design policy. Finally we give prototype implementation of this architecture and conclusion.