【摘要】 采用自顶向下的思想对利用PB机制构造容错COTS服务器进行了系统性的研究.首先基于实际研究开发工作给出了容错COTS服务器的系统模型,然后在该系统模型基础上设计了的通用PB机制,最后设计和分析了PB机制的四个核心算法:分布式故障诊断算法、分布式选举算法、分布式一致性控制算法和客户端/服务器协同算法.更多还原

【Abstract】 The primary-backups mechanism for fault-tolerant COTS server is studied systematically.Firstly,a system model of fault-tolerant COTS server and a general primary-backups mechanism are proposed based on the system model.Then four important algorithms are designed and analyzed in the general primary-backups mechanism: distributed failure diagnosis algorithm,distributed election algorithm,distributed consistency control algorithm,and server/client coordination algorithm.更多还原