摘要
从提高射电望远镜观测控制系统构件可靠性出发,提出了一种基于半主动复制方式的构件容错算法。算法通过半主动处理请求消息和链式转发状态消息减少状态同步开销,缩短了响应时间。算法分析与测试结果表明,在多层C/S结构中,文中提出的算法比同类算法具有更短的平均响应时间。
To improve the components reliability of radio telescope observation control system, the authors present a new component fault-tolerant algorithm based on the semi-active replication. This algorithm reduces status synchronization overhead and response time by semi-active responding of request messages and chained forwarding of status messages. Analysis and ex perimental results show that, compared with the existing algorithms, the presented algorithm can obtain shorter average response time in multi-layer C/S system architecture.
出处
《自动化与仪器仪表》
2013年第2期58-60,63,共4页
Automation & Instrumentation
基金
国家自然科学基金(11273001)资助
关键词
半主动复制
容错
链式转发
响应时间
semi-active replication
fault-tolerant
chained forwarding
response time
