Research of Grid Resource Discovery Mechanism Based on P2P

摘要

To solve the Grid resource discovery framework problem, this paper proposes the resource discovery mechanism based on Peer-to-Peer (P2P). The mechanism introduces the concept of super-node (SN) and virtual organization (VO), which combines both the advantage of decentralized and centralized resource discovery, and makes up a layered resource management model: SN manages user and storages resource information by MDS(Meta Data Service) mechanism in the VO; a P2P virtual level is composed of a large amount of peer service (PS) among VOs, which utilizes the querying and transmitting policy based on historical information and control the diffusion algorithm in resource discovery mechanism. And the simulation shows that the algorithm can find the most suitable resources and improve resource discovery efficiency.