信息网格中基于P2P的个体资源发布与访问机制

针对大学数字博物馆网格(university digital museum grid,简称UDMGrid)整合了分布在8个城市13个大学数字博物馆的信息资源,但是难以整合分布在互联网上的众多个体资源的问题,以UDMGrid为典型例子,分析了P2P技术与个体资源的特点,研究实现了一种信息网格环境下基于P2P的个体资源发布与访问机制.该机制首先基于Web技术在资源节点本地发布个体资源,利用信息网格中的已有资源整合方法将个体资源注册到网格环境,然后借助P2P覆盖网络访问个体资源,最后在UDMGrid系统中,实验并验证了从个体资源发布到访问的全过程.

A P2P-based mechanism for personal resources distribution and access in information grid

UDMGrid(university digital museum grid) is a typical information grid.It has accomplished integration and sharing of resources derived from 13 university digital museums in 8 different cities.But it is unable to integrate various personal resources on the Internet.P2P technology indicated the means to integrate personal resources.Therefore,this paper analyzed characteristics of P2P and personal resources,made researches on mechanism for personal resources integration in grid environment to enable information grid to integrate personal resources,and then presented a P2P-based mechanism for personal resources distribution and access in grid environment.This mechanism first utilizes a web-based method to distribute personal resources and makes use of existing resource integration mechanisms in information grid technology to register personal resources.Then,it uses P2P overlay to break the network limitation to the access of personal resources.Finally,the experimental results demonstrate the work of this paper,and show that this mechanism is correct on personal resources distribution and access,especially in UDMGrid.