| 一种基于P2P系统的数据库模型 |
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| 引用本文： | 喻梅,赵政,于健.一种基于P2P系统的数据库模型[J].华南理工大学学报(自然科学版),2007,35(5):90-93,99. |
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| 作者姓名： | 喻梅 赵政 于健 |
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| 作者单位： | 天津大学,计算机科学与技术学院,天津,300072 |
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| 摘 要： | 构建了一种基于P2P系统的本地关系数据库模型LRM,给出了LRM的语义定义及体系结构,旨在解决客户机/服务器方式的分布式数据库系统存在的瓶颈节点,解决为保持节点间的数据一致性而增加的网络传输负荷问题.通过实例分析了模型中各对等节点之间通过域关系进行的数据传输,以及如何实现各节点之间的一致性规则.实例表明,采用LRM模型可以降低数据库系统中节点之间的数据通信量,使各节点能够提供更灵活的数据和服务共享,提高了系统的可靠性.
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| 关 键 词： | 数据库 P2P系统 本地关系模型 关系空间 域关系 一致性规则 |
| 文章编号： | 1000-565X（2007）05-0090-04 |
| 修稿时间： | 2006-10-16 |
A Database Model Based on P2P System |
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| Yu Mei,Zhao Zheng,Yu Jian.A Database Model Based on P2P System[J].Journal of South China University of Technology(Natural Science Edition),2007,35(5):90-93,99. |
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| Authors: | Yu Mei Zhao Zheng Yu Jian |
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| Institution: | School of Computer Science and Technology, Tianjin Univ. , Tianjin 300072, China |
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| Abstract: | In order to overcome the bottleneck node in the distributed database system in client /server mode and to reduce the network transfer load for keeping the data consistency between nodes,a local relation model(LRM) of database based on P 2P system is proposed,and the theoretic semantics and architecture of LRM are presented.Moreover,an instance is presented to analyze the data transfer according to domain relation and the way to the realization of coordination formulas between P 2P nodes.It is finally concluded that the proposed LRM helps to reduce the data communication between nodes,improve the system reliability and provide flexible sharing on data and service. |
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| Keywords: | database P 2P system local relation model relation space domain relation coordination formula |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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