Database Query Technology Research In A Grid Environment

Grid environment database technology is the computer technology to the forefront of a new field of research, by the computer science field of great concern. In this paper, grid and the development of the grid database features in-depth discussions, on the grid database visits and inquiries prototype modular design, OGSA - DAI in the framework and on the basis of internal processes, Design metadata management services (MDS) and distributed query processing services (DQP) and MDS and the adoption of these two modules Friendly interactions of distributed heterogeneous database inquiries. The MDS main module of the metadata definition and management, the introduction of the service log, as well as service discovery mechanism and replacement services buffer zone proposed solutions. Friendly module from the command module, the distribution and inquiries query execution comprising three sub-modules, In this paper, these three sub-module design details of the study and the algorithms.