Designing a real-time recoverable action

Description

This item was taken from the IEEE Periodical ' Designing a real-time recoverable action ' There is a clear and urgent need for mechanisms that are able to integrate the real-time and the reliability requirements. So, it would be possible to address the real-time and fault-tolerance requirements together during the design of the system. This would make the development of reliable real-time systems simple and efficient. This paper presents the development of a fault-tolerant mechanism, one which is able to take into account the real-time constraints of the tasks. This mechanism is a real-time recoverable action which can provide both forward and backward error recovery. The atomic action is used as a natural way of achieving fault-tolerance in a distributed or parallel system. An adaptable scheduler is used to schedule the real-time recoverable action, guaranteeing the hard real-time tasks.