【摘要】 分析了欧洲数据网格项目中数据管理中间件的体系结构和基本实现。所有的服务都是紧密结合OGSA体系结构并基于Web Service技术原型。目前的数据管理体系结构是模块化的,主要部件有复制定位服务、复制元数据服务、复制优化服务、复制订阅等。详细分析了数据管理各个部分的结构并给出了将来的方向。更多还原

【Abstract】 The architecture and initial implementation of the next-generation of grid data management middleware in the EU EDG project are described. All of new services are based on the web service technology paradigm, very much in line with the emerging open grid services architecture (OGSA). Service components include replica location service, replica metadata service, Replica optimization service, etc. Data management service structure is analyzed and development trend in the future is given.更多还原