基于虚拟服务缓存的服务网关性能优化

WSRF规范迈出了将网格技术和Web服务技术加以融合的关键一步，服务调用性能的重要性日益突出，服务网关最初用于解决公共IP和私有IP之间的Web服务可访问性问题，现在也用于基于集群的Web服务的调度，本文结合Web服务和网格中常见的数据服务和信息服务的特性，在服务网关中引入了一种新颖的虚拟服务缓存模型，并通过定量的分析，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，该虚拟服务缓存模型，具有普遍性，并且可以有效地缩短服务的平均响应时间．

Virtual Service Cache Based Service Gateway Performance Tuning

WSRF specification constitutes an important progress in the merging between Grid technology and Web Service technology. The performance of service invocation has become increasingly important. Service gateway is originally developed to solve the communication problem between the services with public IP and those with private IP. Recently, it is used to build a service cluster. In a service cluster, a service gateway according to specific strategy selects one service node to handle the request to improve the system performance. According to the features of Web Service and Data/Information Grid, this paper designsed a new virtual service cache model based on service gateway, and analysed this model to prove that it is an efficient model to shorten average response time of service invocation. The experiment results showed that this model is of universality, and can improve average response time of services prominently.