面向多自治域网格的信息服务模型及其实现

网格是实现分布异构资源共享的有效模式,而信息服务实现系统服务与资源的有效管理,是网格系统的重要组成部分.ChinaGrid是由多个自治域组成的大规模网格,现有的信息服务不能满足此类系统特性与应用需求.文中提出网格信息服务体系GISA2.0,强化了域自治管理和资源信息的安全性.GISA2.0实现了可扩展的网格信息模型和面向服务、支持多种监控信息聚集的层次化信息管理框架.提出了基于分布XPath引擎的多域资源信息检索机制,实现了安全、快速和用户相关的虚拟全局资源视图.

Research and Implementation of Information Service Model on Grid with Multiple Autonomous Domains

Grid is an effective pattern for implementing heterogeneous resource sharing.Information service is a vital component of grid system,it carries out efficient management of system services and resources.ChinaGrid is a large-scale grid containing multiple autonomous domains.Existing information services can not meet the requirements of systems and applications with such kind of characteristics.This paper presents GISA2.0(Grid Information Service Architecture,GISA),focusing on autonomous domain management and resource information security.GISA2.0 implements a scalable grid information model and service-oriented hierarchical information management framework,which supports the aggregation of monitoring information from multiple monitoring systems.To achieve secure,fast,and user-related virtual global resource view,GISA2.0 uses a cross-domain information retrieval mechanism based on distributed XPath engine.