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针对资源发现在网格规模及应用不断扩展过程中变得越来越复杂的问题,在网格环境中融合Web Service技术,同时引入P2P思想,将资源发现模型分为内外两层,提出一个分层网格资源发现模型,简称SRDG(Stratified Resource Discovery of Grid),并在制造网格中基于元数据对网格资源分类,设计出SRDG-M体系结构。实验证明,该模型有效解决了集中式模式带来的节点瓶颈等问题,并大幅降低分布式系统中资源发现产生的网络流量,具有高效性、可扩展性和鲁棒性。
In view of the problem that resource discovery becomes more and more complicated in the process of grid size and application expansion, we integrate Web Service technology in grid environment and introduce P2P idea at the same time, divide the resource discovery model into two layers inside and outside, SRDG (Stratified Resource Discovery of Grid) is a model of layer grid resource discovery. Based on the metadata, the SRDG-M architecture is designed based on metadata. Experiments show that the model effectively solves the problem of node bottleneck brought by the centralized mode and greatly reduces the network traffic generated by resource discovery in distributed systems. It is highly efficient, scalable and robust.