基于关联对象组的业务组件请求分配算法  

Enterprise Java Bean Business Components Request Distribution Algorithm Based on Related Object-Group

作　　者：赵天海[1] 齐勇[1] 沈钧毅[1] 郑晓梅[1] 

机构地区：[1]西安交通大学电子与信息工程学院,西安710049

出　　处：《西安交通大学学报》2006年第2期152-156,共5页Journal of Xi'an Jiaotong University

基　　金：国家高技术研究发展计划资助项目(2004AA112040);国家自然科学基金资助项目(60473098)

摘　　要：针对企业Java业务组件(EJB)的负载请求特点,提出了基于关联对象组的EJB负载分配算法(ROGRD).该算法对集群环境下的EJB资源创建情况进行划分,并根据划分的集合在排队论系统模型的基础上建立了代价函数和回报函数,然后依据不同的请求类型,且在请求内容的分布,服务器的负载状况以及服务器的处理性能的衰减3个约束条件下,获得代价最小而回报最大分配方案.实验结果表明,ROGRD比基于位置的请求分配算法的响应时间减少了11%,吞吐量提高了28.5%.Aiming at the workload features of enterprise Java bean （EJB） business components request, a request distribution algorithm based on related object-group （ROGRD） is put forward in clustered EJB systems. This algorithm partitions the resource sets based on the condition of the created EJB. According to the sets and the system model of queuing theory, the cost function and reward function are set up and the maximum distribution strategies with least cost and most reward are obtained in terms of the type and content distribution of EJB request, the workload of EJB server and the performance degradation of EJB server. Experimental results show that the average response time of the proposed algorithm is less than locality-aware request distribution by 11%, and throughput is increased by 28. 5%.

关 键 词：企业Java组件 请求分配算法 关联对象组 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]