基于服务网关的虚拟服务缓存的研究和应用  

Research and Application of Service Gateway Based Virtual Service Cache Model

作　　者：顾雷[1] 何川[1] 黄震春[1] 杜彬[1] 李三立[1] 

机构地区：[1]清华大学计算机科学与技术系高性能研究所,北京100084

出　　处：《计算机学报》2005年第4期534-540,共7页Chinese Journal of Computers

基　　金：上海教委E研究院的上海高校网格项目;国家"八六三"高技术研究发展计划项目"森林资源与林业生态工程信息应用网格"(2002AA104230)资助.

摘　　要：在面向服务的体系结构(SOA)中,服务作为模块之间的接口,其调用性能的重要性日益突出.为提高服务调用的性能,经常使用服务网关构建服务集群,通过部署在网关上的调度器,来实现服务集群的负载平衡.文章针对Web服务中常见的数据服务和信息服务,设计了一种基于服务网关的面向时间的虚拟服务缓存模型,通过定量的分析证明该模型能够有效缩短可缓存服务的平均响应时间.实验表明,该模型具有普遍性,在实际应用中已取得良好的效果.In SOA, services are the interfaces to modules. The performance of service invocation has become increasingly important. Recently, service gateway is used to build a service cluster. In a service cluster, a service gateway schedules service nodes to improve the system performance by load balancing. According to the features of Data/Information service, this paper designs a new virtual service cache model based on service gateway, and analyses this model to prove that it is an efficient model to shorten average response time of service invocation. The experiment and application results show that this model is of universality, and can improve average response time of services prominently.

关 键 词：SOA 服务网关 虚拟服务 缓存 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]