Peer-to-peer based QoS registry architecture for web services

Authors:
Fei Li;Fangchun Yang;Kai Shuang;Sen Su
Affiliations:
State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing, P.R.China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing, P.R.China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing, P.R.China;State Key Lab. of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing, P.R.China
Venue:
DAIS'07 Proceedings of the 7th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
Year:
2007

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Abstract

Web service QoS (Quality of Service) is a key factor for users to evaluate and select services. Traditionally, run-time QoS of web services stores in centralized QoS registry, which may have performance and availability problems. In this paper, we propose a P2P (Peer-to-Peer) QoS registry architecture for web services, named Q-Peer. Q-Peer is an unstructured P2P system. Query of QoS is naturally achieved by getting QoS address from corresponding service description. Q-Peer has a replication based mechanism to ensure load-balance of the whole architecture. The architecture takes advantage of P2P systems to ensure its availability, performance and autonomy. We are currently implementing Q-Peer and planning to test it on Planet-Lab.