Research And Development Of Grid Services Based On Globus Toolkit 4

With the increase of the requirement of the services, a single high-performance computer isn't competent to settle the super large-scale problems. Resource share and connectivity can be realized by using grid technology. Nowadays, Web technology and grid technology are two research hotspots, the new grid architecture—OGSA has formed by combining newest Web service technology with grid technology together. Grid services based on OGSA realize information share, resource and application by defining a set of interface that obey to special stipulation.The author analyzes the Singleton Resource pattern services, the Multiple Resources factory pattern services and the EndPointReference management, and so on in Globus Toolkit 4; On the basis of contrasting with the Singleton Resource pattern, use the Multiple Resources factory pattern to study the mathematical computation grid services development flow; Developing the single stock quoted price grid services, and use the Multiple Resources factory pattern to realize the stock portfolio management grid services.On the basis of introducing grid services related concept and techniques, the paper adopts Globus Toolkit 4 - open source gird platform to construct the grid experiment environment; First in view of grid services realization question based on Globus Toolkit 4, the paper introduces the Singleton Resource pattern services and the Multiple Resources factory pattern services' realization model, and take a grid mathematical computation as the example, specifies the Multiple Resources factory pattern grid services' realization process; In order to alleviate the stockjobber's stock quote server to be unable to withstand the great current data accessing question when the services requestors are huge, the paper proposes the application system of stock quoted price grid services which take the grid middleware - Globus Toolkit 4 as the foundation. Taking this system as the support, realizes the single stock quoted price grid services and the Multiple Resources factory pattern's stock portfolio management grid services separately.The paper has confirmed the feasibility and the superiority of grid services based on Globus Toolkit 4, it lays the foundation for the grid services' further application.