| With the development of computer technology and network technology, the distributed system is already applied widely. By its ascendancy in two facets, practicability and performance, redundant service has been a researching focus in the field of distributed-computing. This paper firstly analyzes the jobs that have been done in the existing distributed redundant service systems. And then investigates the performance management of an object-oriented distributed redundant service system which is the background of this paper. At the same time, it presents a new load-balancing model based on mobile agent, which is introduced here in load-balancing management for the first time. That is MMA model. At last, it describes the simple realization of MMA model with JAVA-JDK.Specifically, the works have been done in this paper mainly includes three facets as following:1. Introduces the total frame of distributed redundant service system, which is built by use of distributed-object technology in distributed-computing environment.2. Presents a new method in load-balancing management of object-oriented distributed redundant service system that is making a model of MMA based on mobile agent. In this model, load-balancing is ensured by the cooperation of Object Manager, Mobile Agent and Server Agent.3. Implements the model system of MMA with JAVA-JDK. |
