Scalable consistency management in dynamic content distribution overlays

Zhou Su, Jiro Katto, Yasuda Yasuhiko

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Content Distribution Overlays improves end-user performance by replicating Web contents on a group of geographically distributed sites interconnected over the Internet. However, with the development whereby overlay systems, can manage dynamically [2] changing files, an important issue to be resolved is consistency management, which means the cached replicas on different sites must be updated if the originals change. In this paper, based on the analytical formulation of object freshness time, web access distribution and network topology, we derive a novel algorithm as follows: (1) For a given content which has been changed at its original server, only a limited number of its replicas, instead of all replicas are updated. (2) After a replica has been selected for update, the latest version will be sent from an algorithm-decided site instead of from its original server. Simulation results verify that the proposed algorithm provides much better consistency management than, conventional methods with the reduced update overhead and network traffic.

    Original languageEnglish
    Title of host publicationProceedings - IEEE International Conference on Cluster Computing, ICCC
    DOIs
    Publication statusPublished - 2005
    Event2005 IEEE International Conference on Cluster Computing, CLUSTER - Burlington, MA
    Duration: 2005 Sep 272005 Sep 30

    Other

    Other2005 IEEE International Conference on Cluster Computing, CLUSTER
    CityBurlington, MA
    Period05/9/2705/9/30

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    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Su, Z., Katto, J., & Yasuhiko, Y. (2005). Scalable consistency management in dynamic content distribution overlays. In Proceedings - IEEE International Conference on Cluster Computing, ICCC [4154125] https://doi.org/10.1109/CLUSTR.2005.347082