A Grid Service Discovery Mechanism Based On Structure Gossip Protocol

With the development of modern technology and the wide use of internet, many special applications require more share and cooperation of wide-area distributed environment resources. Grid technology is becoming a hot issue in the distributed system area. Its aim is to connect through high speed internet and integrate resources, such as geographically distributed and heterogeneous, high performance computer, data server and index database system, and therefore resolve problems together and finally eliminate information islands and resource islands. A large number of services and resources are distributed in the dynamic grid environment, and the key point is to discover them promptly and accurately.Based on the present research, this thesis studies grid architecture, MDS and distributed message dissemination, focuses on the requirements of Daqing Oil Field's data grid in resource administration, aiming at establishing a message dissemination Grid Service Discovery Mechanism.An information server and Grid Service Discovery Mechanism model are established first, and a Grid Service Discovery Mechanism Based on Structure Gossip Protocol is designed. The thesis highlights the operation of the new structured message dissemination algorithm, called structure gossip (S-Gossip). It designs three messages and message disposal protocol, referring to cycling message transmission and multicast widely used in grid technology. Through experimental analysis, its stable redundancy and integrality is proved, and finally a hierarchy of Grid Service Discovery Mechanism is established. This mechanism uses disseminative resource location, has good extensibility, fitting the dynamic grid resource dissemination well.