Reliability analysis of repairable distributed system based on middleware
Renbiao Wu · Jisuanji gongcheng yu sheji · 2013
As the core of large distributed system,middleware can provide hot-standby,dual-network redundancy services for the application programs.Aiming at the problem of the reliability of distributed redundancy system,Markov model is formulated to analyzed the reliability of repairable distributed redundancy system.According to the maintenance strategy of first resunming the function of application program,state transition diagram is established based on the state transition of the system,and then the system reliability formula is obtained.Simulation results show that application program failure plays a more important role in influencing the system reliability than network failure,and system reliability is enhanced effectively by improving the maintenance ratio of higher maintenance priority module.