网格环境下数据库对等发现服务模型的研究

A STUDY OF DATABASE PEER-TO-PEER DISCOVERY SERVICE MODEL ON THE GRID

发现服务是网格环境下的核心服务之一。本文针对网格中数据库的发现服务问题 ,提出了一种对等发现服务模型DPDS(DatabasePeer to peerDiscoveryService)。该模型引入发现服务器日志 ,试探性的在对等网中搜索可用的数据库及服务。不仅使发现服务具有更好的可用性和可扩展性 ,同时可以缩短响应时间 。

Discovery Service is one of the core services on the grid.This paper presents a P2P discovery service model,DPDS(Database Peer-to-peer Discovery Service),for the databases on the grid.By mining discovery service logs,DPDS heuristics for locating databases and services in P2P networks which satisfy requirements.Based on the proposed techniques in this paper described,we can upgrade the discovery service's availability and scalability,and shorten response time with higher service efficiency.