关键词: 负载平衡 中间件 agent 多粒度 设计模式

Abstract:

By using load balancing middleware, we can satisfy the urgent demands of performance, scalability and availability of the distributed service-oriented   applications. However, most of the current load-balancing middleware adopt the per-object load monitoring granularity, so when multiple object groups e xist in the same host, problems will emerge. In this paper, we present and realize a CORBA based multiple granularity load-balancing middleware by using agents and the key design challenges including adjustable load monitoring granularity, customizable load balancing strategy, load feedback,adaptive con trol, and so on.

Key words: （load balancing, middleware, agent, multiple-granularity, design pattern）