DRN: A CORBA-Based Distributed Resource Navigation System for Data Grid

Authors:
Jia-Jia Miao;Ai-Ping Li;Jia Yan;Quan-Yuan Wu
Affiliations:
School of Computer Science, National University of Defense Technology, Changsha 4100073, P.R. China;School of Computer Science, National University of Defense Technology, Changsha 4100073, P.R. China;School of Computer Science, National University of Defense Technology, Changsha 4100073, P.R. China;School of Computer Science, National University of Defense Technology, Changsha 4100073, P.R. China
Venue:
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part III: ICCS 2007
Year:
2007

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Abstract

Data grids are becoming increasingly important for sharing distributed data and information in collaborative environments. This paper presents a CORBA-based Distributed Resource Navigation system consisting of Resource Agents and Navigation Service. The former one is a middleware that provides applications with a uniform set of operations to access heterogeneous distributed storage resources including file systems and database systems, and archival storage systems. The latter one is a metadata navigation service which is utilized by DRN to improve data publishing and lookup efficiency. Experiments show that CORBA-based DRN can provide the essential data virtualization services, and that Navigation service and Resource agent have a good performance with concurrent accesses.