Adaptive Fault Detection Technology Research Based on Distributed Database Disaster

Abstract

Distributed storage systems demonstrate superior performance in terms of capacity, I/O throughput and scalability, but the reliability of inexpensive components is not high, and it is easy to cause catastrophic consequences of data loss. Fault detection is a key technology to provide high availability for distributed system, the new adaptive fault detection system architecture is proposed in this paper, which considered availability and disaster recovery ability, is divided into four levels: 1) Client layer: in this layer, customers can keep in touch with local network or outside network disaster recovery/backup center; 2) Server layer: in this layer, the high availability is guaranteed by its backup scheme; 3) Local recovery layer: in this layer, data backup and recovery are realized through local real-time replication; 4)Remote recovery layer: in this layer, data backup and recovery are realized (delayed) through remote backup database. And we evaluated and tested this method in our lab network environment.