An Effective Loading-Balancing Framework for Grid Web Service
Zhi Chen · Chinese Journal of Computers · 2005
Based on the small world model of web service resources, a web service architecture, which is seamlessly integrated with OGSA (Open Grid Service Architecture), and a resource distribution model considering dynamic load balancing are proposed. It regards WSRRC (web services resource register center) as an entry for web service resource searching, take the virtual resource tree, which is based on the web resource identification types, as resource logic organization and resource distribution construction, and maintains web service resources according to the APAS (area proxy autonomy system) derived from the small world. Meanwhile, the implementing mechanism, the organizing protocol and the data structures required are also given, with the emphasis on the discussion of the information transmitting mechanism of the logic resource tree and the strategy for load balancing. The analysis of the model and the simulations carried on the prototype demonstrate that the model is sound and efficient, is able to achieve satisfactory performance on resource organizing and locating at a small cost, and is well adapted to the heterogeneous, complicated and dynamic features of the web service resources, with good scalability achieved and global load balancing gained.