The Research On Disaster Tolerance Technology Of Distributed System Data

With the distributed application systems playing a more and more important role in various fields, people have a higher requirements on security of the distributed system. This paper has done a technology research on the fault detection which plays an important task on the distributed system. It has done a further research on the adaptability and the scalability of fault detection technology.On the adaptability of fault detection technology research, this paper introduces a kind of adaptive QoS-FD fault detector which can be used by the different kind of Fault detection service objects, comparing with the traditional fault detection technology, it has a great improvement.On the scalability of fault detection technology research, this paper introduces a redetection technology which based on ring topology. The redetection technology can avoid the "single point of failure problems" on the tree topology structure. In addition, This technology can detect the communication link failures and their own fault. And it has a good adaptability to node dynamic changes on the distributed system.