内容发布订阅系统中的动态负载均衡  

Dynamic load balancing in content-based publish/subscribe system

作　　者：逯鹏[1] 林学练[2] 刘旭东[2] 李冬松[3] 

机构地区：[1]郑州大学电气工程学院,郑州450000 [2]北京航空航天大学计算机学院,北京100083 [3]国际关系学院信科系,北京100091

出　　处：《计算机应用研究》2008年第5期1507-1510,共4页Application Research of Computers

基　　金：国家“863”计划基金资助项目(2003AA119030);国家自然科学基金资助项目(90412011)

摘　　要：复杂广域网络应用带来了内容发布订阅系统动态负载失衡问题。提出了一种动态负载均衡框架解决该问题。采用周期性交换和计算负载的方法实现了负载探测,采用代理复制和区域重构的方法解决了负载迁移问题,设计了负载协商状态机用于协商代理之间的负载迁移,采用转移加入和动态自适应两种方法进行负载均衡决策。实验结果表明,该负载均衡框架能够有效解决内容发布订阅系统的动态负载失衡问题,将负载均衡效率提高了50%。The complex wide-area network application scenario brings non-load balancing problem to content-based publish/ subscribe system. Introduced a dynamic load balancing framework to settle this problem. Load calculation and exchange cyclically method were used to realized load detection. Broker replication and region reconstruction settle the load migration problem. Designed a load consultation state machine was to coordinate procedure of load migration between brokers. Two methods which name adding transfer and dynamic self-adaptive load balancing were used to support load balancing decision. The experiment result reveals that load balancing efficiency raise 50%.

关 键 词：负载均衡 发布订阅系统 框架 动态自适应 

分 类 号：TP393.2[自动化与计算机技术—计算机应用技术]