Replication in Peer-to-Peer Systems

  • Authors:
  • Mirko Knoll;Haitham Abbadi;Torben Weis

  • Affiliations:
  • University of Duisburg-Essen, Duisburg, Germany 47057;University of Duisburg-Essen, Duisburg, Germany 47057;University of Duisburg-Essen, Duisburg, Germany 47057

  • Venue:
  • IWSOS '08 Proceedings of the 3rd International Workshop on Self-Organizing Systems
  • Year:
  • 2008

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Abstract

We present a replication algorithm for peer-to-peer networks that automatically adapts to an increase of requests. If some information is suddenly very popular, the algorithm distributes it in the peer-to-peer system and reduces the replicas when the demand decreases. The algorithm is totally self-organizing, i.e. it does not need any administration and is very resilient to node failures. Furthermore, our algorithm uses the concept of geographical proximity. Data is preferably replicated on peers which are geographically close. This is especially useful for location-based information, such as traffic information, tourist data and weather alerts.