Dividing grid service discovery into 2-stage matchmaking

Authors:
Ye Zhu;Junzhou Luo;Teng Ma
Affiliations:
Department of Computer Science and Engineering, Southeast University, Nanjing, P.R. China;Department of Computer Science and Engineering, Southeast University, Nanjing, P.R. China;Department of Computer Science and Engineering, Southeast University, Nanjing, P.R. China
Venue:
ISPA'04 Proceedings of the Second international conference on Parallel and Distributed Processing and Applications
Year:
2004

Citing 3
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Abstract

In the wide-area Grid environment which consists of a huge amount of stateful Grid services, the service discovery is a key and challenging issue. The user's requirements on Grid services not only include the function-related but also include the QoS or service state related requirements. Based on the analysis for the requirements of service discovery, this paper divides the service matching process into 2 stages: service type matching and instance matching, and proposes a Grid Service Discovery Model Based on 2-Stage Matching which can enable more effective service discovery. In the model VO is utilized as the managerial unit for grid services and a two-level publication architecture is adopted. The initial simulation results show that the model can effectively aggregate the service information and avoid the workload caused by frequent dynamic updating.