A Grid Information Services Architecture Based on Structured P2P Systems

  • Authors:
  • Xia Zhu;Junzhou Luo;Aibo Song

  • Affiliations:
  • School of Computer Science and Engineering, Southeast University, Nanjing, P.R. China;School of Computer Science and Engineering, Southeast University, Nanjing, P.R. China;School of Computer Science and Engineering, Southeast University, Nanjing, P.R. China

  • Venue:
  • Computer Supported Cooperative Work in Design IV
  • Year:
  • 2008

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Abstract

Structured P2P systems prove efficient in query operation and adaptive dynamic updates. This paper presents a Grid information services architecture based on structured P2P topology, namely distributed hash table (DHT). It resolves problems which centralized topology owns, such as single points of failure and low query efficiency. In the proposed architecture, each resource node and Index server is given an m-bit identifier by hashing resource attribute values. Every node makes connection with successor Index server according to their identifiers. To avoid structured P2P breaking formal relationship of a virtual organization (VO), all resource information will be managed by a local Information server instead of the Index server. The Index server just keeps index to provide resource query service. Range query is a vital part in Grid resource query but structured P2P systems cannot resolve it well. To support range query service, we propose a tree data structure and Path Caching Schemes to improve the proposed architecture. Theoretical analysis and simulation results show that the proposed Grid information services architecture is efficient, robust, load balanced, and scalable.