Efficient Dynamic Service Provisioning over Distributed Resources Using Chord

Since the advent of the Internet, the demand for distributed applications scaling geographical areas has been ever increasing. During the last decade, research into the Grid paradigm let to the concept of ad-hoc virtual organisations and have added an impetus towards distributed applications by providing on-demand service provisioning. The use of job-based paradigms and strong coupling of current service-based paradigms with static registries such as UDDI hinder the achievement of complete dynamism over volatile resources of the Grid. One possible solution is the use of structured peer to peer overlay networks where volatility of resources can be considered more effectively. In this paper, we present an architecture of a web service based P2P Grid framework for managing the services and resources using the Chord protocol. It uses a decentralized registry which facilitates demand driven provisioning of web services and enables a virtual market place for computational resources.