Distributed Replica Placement Algorithms for Peer-to-Peer Content Distribution Networks

  • Authors:

  • Tim Wauters;Jan Coppens;Thijs Lambrecht;Bart Dhoedt;Piet Demeester

  • Affiliations:

  • -;-;-;-;-

  • Venue:
  • EUROMICRO '03 Proceedings of the 29th Conference on EUROMICRO
  • Year:
  • 2003

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Abstract

Recently there has been an increasing deployment ofcontent distribution networks (CDNs) offering hostingservices to Web content providers. CDNs deploy a set ofsurrogate servers distributed throughout the Internet andreplicate provider content across these servers to providebetter performance and availability than centralisedprovider servers do. Problems regarding robustness,scalability, accessibility and efficiency however, broughtthe attention to peer-to-peer (P2P) architectures for usein CDNs. In P2P architectures, every node acts as aclient and as a server. This way, intelligence is spreadover the network, making self-organisation and automaticrecovery more easy. In this paper, we present severalreplica placement algorithms (RPAs) for peer-to-peerCDNs. We will show that they enhance CDN performanceby determining the optimal location of content replicas onthe surrogate servers.