Abstract: Fault-tolerant mechanism is fundamental to the further development of mobile agent applications.This paper presents a novel and robust approach to fault-tolerant mobile agent execution,which is based on message passing and logging.Compared to those proposed so far,the solutions does not require a reliable failure detection or broadcasting mechanism,which also prevents blocking and ensures the mobile agent is executed exactly once it is extensible and robust.

摘要： 容错机制是移动Agent系统中关键技术之一,该文中提出了一种基于消息机制和日志记录的容错协议,并对其在各种故障情况下,进行了定性分析。结果证明,它既可以保证移动Agent执行不被阻塞,又可以保证其只被执行一次,具有良好的可扩展性和健壮性。

关键词: 移动agent, 容错机制, 可用性, 只执行一次

CLC Number: 

• TP393.09