Scalable consistency management in dynamic content distribution overlays

Zhou Su, Jiro Katto, Yasuda Yasuhiko

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2005 IEEE International Conference on Cluster Computing, CLUSTER
DOI
出版ステータスPublished - 2005 12 1
イベント2005 IEEE International Conference on Cluster Computing, CLUSTER - Burlington, MA, United States
継続期間: 2005 9 272005 9 30

出版物シリーズ

名前Proceedings - IEEE International Conference on Cluster Computing, ICCC
ISSN(印刷版)1552-5244

Conference

Conference2005 IEEE International Conference on Cluster Computing, CLUSTER
国/地域United States
CityBurlington, MA
Period05/9/2705/9/30

ASJC Scopus subject areas

  • 工学(全般)

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