m-LIGHT: Indexing Multi-Dimensional Data over DHTs

  • Authors:
  • Yuzhe Tang;Jianliang Xu;Shuigeng Zhou;Wang-chien Lee

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
  • Year:
  • 2009

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Abstract

In this paper, we study the problem of indexing multidimensional data in the P2P networks based on distributed hash tables (DHTs). We identify several design issues and propose a novel over-DHT indexing scheme called m- LIGHT. To preserve data locality, m-LIGHT employs a clever naming mechanism that gracefully maps the index tree into the underlying DHT so that it achieves efficient index maintenance and query processing. Moreover, m- LIGHT leverages a new data-aware index splitting strategy to achieve optimal load balance among peer nodes. We conduct an extensive performance evaluation for m-LIGHT. Compared to the state-of-the-art indexing schemes, m- LIGHT substantially saves the index maintenance overhead, achieves a more balanced load distribution, and improves the range query performance in both bandwidth consumption and response latency.