A Resource Discovery Approach Based on Echord in Grid Environment
Ruchuan Wang · Dianzi xuebao · 2010
Considering the failure of key node and poor load balance in the process of traditional grid resource discovery,this paper proposes an approach to the grid resource discovery by P2P technology.We presented an enhanced chord(Echord) protocol by modifying the chord's succeed function and finger table so as to improve the discovery efficiency of DHT-based Peer-to-Peer framework.According to the feature of the Echord,all grid nodes are organized into ring topology.The grid resources are described as the RDF form and the resource information are released to different grid nodes.We presented the resource discovery algorithm based on Echord protocol.Theoretical analysis and simulations indicate that the proposed approach can improve average query length,message broadcast performance and random query success ratio in the process of grid resource discovery.