摘要： 市场上存在的一些双机热备份容错系统由于系统监测容错软件本身存在出错的可能性,使得双机热备份系统的可靠性和安全性受到威胁。该文设计并实现的基于代理监测的双机热备份系统,由于容错软件采用4个互相监测和控制的并发进程的结构,解决了由于容错软件本身不稳定带来的安全隐患。

关键词: 双机热备, 集群, 失效检测, 容错, 故障跨越

Abstract: The reliability and safety of some fault tolerant systems on the market are in the danger in fact, because the software monitoring the system may be fail. This paper presents the design and implementation of an application-oriented fault tolerant system, it is composed of four concurrent processes which monitor each other, thus it solves the safety problem of fault tolerant software.

中图分类号: 

• TP302