关键词: 数据网格 P2P DHT Chord 副本定位

Abstract:

Replica locating is one of the most important key techniques in data grids. This paper adopts an improved chord algorithm and refers to the structured P2P technology, and then proposes a method of replica locating in data grids based on the structured P2P scheme. In this way, it can solve the ＂detour＂ problem to a certain extent, improve the efficiency of locating, save the transfer time and bandwidth, and consequentally optimize the performance oof data grids.

Key words: data grid, peer-to- peer, distributed hash table ;chord, replica locating