Backward Fault Recovery in Real Time Distributed Systems of Periodic Tasks with Timing And Precedence Constraint
Bibhudatta Sahoo, Aser Avinash Ekka · 2007
Real-time distributed system, which is designed to provide solutions in a stringent timing constraint requires faulttolerance. This paper presents a new fault-tolerant scheme and an adaptive FT on heterogeneous multi-component distributed system architecture based on Distributed Recovery Block (DRB). The experiment shows that, the proposed scheme based on DRB with Random-EDF heuristic acting upon periodic tasks with timing and precedence constraints can tolerates about 10 % to 20 % number of permanent failures and an arbitrary number of timing failures. 1