摘要
采用基于分布式哈希表(Distributed Hash Table,DHT)的对等网络构建了一个用于Web服务发现的分布式注册中心PWSD(Peer-to-Peer Web Service Discovery).在PWSD中,服务信息完全以非集中式的方式进行管理.针对原始的DHT路由算法无法支持基于XML的Web服务发现过程,扩展了DHT路由算法(以Chord为例)以支持基于XPath的路由查询.实验结果表明,PWSD具有良好的可扩展性.
This paper proposed a scalable Web service discovery architecture based on DHT (distributed Hash table) peer-to-peer overlay network named PWSD (peer-to-peer Web service discovery). In PWSD, the service descriptions are managed in a completely decentralized way. Moreover, since the basic peer-to- peer routing algorithm can not be applied directly in the service discovery process, the basic peer-to-peer routing algorithm was extended with XML support, which enables PWSD to support XPath query. The experimental results show that the PWSD has good scalability.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2006年第5期805-809,共5页
Journal of Shanghai Jiaotong University
基金
2003上海市科委科技攻关重大项目(03dz15027
03dz15028)
关键词
对等网络
分布式哈希表
WEB服务发现
peer-to-peer network
distributed Hash table (DHT)
Web service discovery