一种基于Web Service的分级QoS的研究与实现

Research and Implementation of Web Service Differentiated QoS

(School of Computer Science & Engineering, Beijing University of Aeronautics & A stronautics, Beijing 100083)

摘要: 随着Web Service技术的广泛应用，QoS成为一个非常重要的问题.以服务响应时间为QoS参数，验证了一种基于Web Service的分级QoS方法，提出了目标时间预设模型，并针对优化问题提出一种基于动态规划的解决方法，并实现了原型系统.实验数据表明这种方法有效地控制了负载平衡，实现了服务分级.
- Web服务质量 /
- 服务分级 /
- 服务水平协商 /
- 权重循环 /
- 响应时间 /
- Web服务
Abstract: With the development of web service applications, QoS becomes a severe problem. By using the average response time as the performance metric, a way about web se rvices differentiated QoS is verified and then a method to model target response time is proposed. Meanwhile, an efficient method is proposed to solve dynamic p rogramming questions. A prototype system is designed and implemented in the web service runtime environment. Experimental results show that this method is effec tive to control workload balance and provide web service differentiation.
- Web service QoS /
- service differentiation /
- SLA /
- WRR /
- response time /
- Web service