A Study On Migrating GRID Applications From OGSI To WSRF

Grid is a new calculation platform after World-Wide-Web, it integrate the resources which geography position is dispersive to be a infrastructure.The Globus is the American Argonne development item of the national laboratory( the Argonne National Laboratory).The Globus research the key theories of Grid about the resources management, the Grid safety, service and the data management.The Web Service is the basic of the Grid ,not only the GT3 of the OGSI but also the GT4 of the WSRF , are both make the reasonable and useful improvement basic on the Web Service. It like other technique of the distribute calculation, allow we establish the client/ server applied procedure.It is a technique that makes the applied procedure be able to correspond irrespective with the platform and programe language. The technique that constitutes the Web Service mainly has: SOAP-Simple Object Access Protocol ,WSDL-web service description language, UDDI- Universal Description, Discovery, and Integration. Programe and deploy the procedure of server need five basic steps: Define this service's interface, Implement the service, Define the deployment parameters, Compile everything and generate GAR file, Deploy service.The OGSI core is the Grid Service criterion ,it defined the Grid Service standard interface and behavior based on the WWW service. It put forward the concept of the Grid Service, and defined a set of standardize of interfaces about Grid Service, mainly include: Establish the Service instance, Naming, Management the Lifecycle, Notification of the Service Data, Management the Service Group and deal with the base fault. Globus Toolkit3 is based on the...