Research of the software framework based on Internet-wide information grid

To share the wide-area distributed data and information resources interconnected with Internet, a software framework for the information grid was introduced. Referencing to the open grid service architecture of the computational grid and extending the services such as information collection, monitoring, register, discovering, booking and searching, a component model of the information grid software was presented. Based on the campus computational grid named WADE, a software method for information grid was also addressed. For the purpose of the fault-tolerance, a mast-slave meta-data catalog structure was proposed and the replication and reference mechanism of the catalog were explored too. In addition, a resource monitor agent was designed to discover and collect dynamical resources, and a grid information register protocol and a grid file transfer protocol were introduced for booking and searching the grid information. A service interface to the information grid was then implemented using a shell which is a version called GridShell developed by using JAVA techniques. With this shell, remote users can utilize the computing and the information services provided by the grid conveniently and flexibly and the wide-area resource is realized through a single assess portal.