SDDS Based Hierarchical DHT Systems for an Efficient Resource Discovery in Data Grid Systems

نویسندگان

  • Riad Mokadem
  • Franck Morvan
  • Abdelkader Hameurlain
چکیده

Despite hierarchical Distributed Hash Table (DHT) systems have addressed flat overlay system problems, most of the existing solutions add a significant overhead to large scale systems. In this paper, we propose a hierarchical DHT solution based on scalable distributed data structures (SDDS) for an efficient data sources discovery in data Grids. Our solution deals with a reduced number of gateway peers running a DHT protocol. Each of them serves also as a proxy for second level peers in a single Virtual Organization (VO), structured as an SDDS. The proposed solution offers good performances especially for intra-VO resource discovery queries since they are completely transparent to the top level DHT lookups. The analysis results proved significant system maintenance save especially when nodes join/ leave the system.

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تاریخ انتشار 2012