A Resource Discovery Mechanism Integrating P2P and Grid

Aiming to overcome the shortcomings of Grid resource discovery, this paper presents a Grid resource discovery model with different layers, which adopts P2P (Peer-to-Peer) technology in Grid resource discovery mechanism. The model includes three layers based on three different peers: the Super peer-Agent, Super Peer and Ordinary peer. According to the model, this paper produces a novel Grid resource discovery algorithm, which adopts Keywords Mach algorithm based on Hash Table, employees TF-IDF to product resource keywords, locates and search s resource based on Consistent Hashing Chord, access lower latency and higher credibility peer by ant colony algorithm based on adaptively adjusting pheromone. It is testified by simulation implement that the algorithm can find the most suitable resources and improve resource discovery efficiency.