网格数据库管理模型与策略

Grid Database Management Model and Strategy

越来越多的同格应用需要管理大容量和广域分布的数据。开放网格服务体系结构中的网格服务提供了动态创建、管理和在网格服务中交换的一致接口。本文探讨了以OGSA网格服务管理网格数据库的模型,网格数据库服务提供支持数据访问的控制和发现、执行数据管理的操作,实现数据资源的虚拟化,通过网格实现现有数据库的访问与集成。同时讨论了相关的优化策略。

An increasing number of grid applications manage data at very large scale,of both size and distribution. OGSA defines Grid Services with consistent interfaces for creating,managing and exchanging information among Grid Services dynamically. This paper explores the model of managing grid databases with OGSA Grid Service, Grid database service provides in supporting discovery of and controlled access to data, in performing data manipulation operations,and in virtualising data resources. It implements access and integration of data from existing databases via the Grid. It also discusses the relevant performance tuning strategy.