摘要
DHT(分布式哈希表,Distributed Hashing Table)具有良好的可靠性和稳定性,Chord一种是基于DHT的典型路由管理策略,提供具有可扩展性和高效的服务。查询是P2P数据管理技术的一个重要研究内容,连续查询(continuous queues,简称CQ)用来监视数据流的变化,能够将被动的网络结构变成主动的网络结构,在信息监视等领域有广泛的应用前景。如何在P2P网络结构中开展有效的连续查询,实现高效的数据管理,是一个具有挑战性的问题。设计和分析一种经过改进的基于DHT的连续查询,采用super-peer管理查询,利用Chord组织节点和查询,备份节点能保证查询不丢失,负载平衡策略能很好保持系统的稳定性。
DHT (Distributed Hashing Table) has well reliability and stability. Chord is one of the respective routing management algorithm based on DHT. It provides scalable and efficient service. Query is the important aspect of data management technology based on P2P. Continuous query can monitor the movement in data stream and transform a passive net framework into an active environment. How to efficiently process continuous query on P2P network and data management is a challenging problem. In this paper, we argue and analyze an improved CQ method based on DHT by using super-peer, Chord and backup peers that can ensure the stability of the CQ.
出处
《微型电脑应用》
2008年第6期39-41,30,共4页
Microcomputer Applications
基金
国家教育部博士点资助项目(2069901)
