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On the Tradeoff between Resilience and Degree Overload in Dynamic P2P Graphs
14th IEEE International Conference on Peer-to-Peer Computing
  • Zhongmei Yao, University of Dayton
  • Daren B. H. Cline, Texas A & M University - College Station
  • Dmitri Loguinov, Texas A & M University - College Station
Document Type
Conference Paper
Publication Date
9-1-2014
Abstract

Prior work has shown that resilience of random P2P graphs under dynamic node failure can be improved by age-biased neighbor selection that delivers outbound edges to more reliable users with higher probability. However, making the bias too aggressive may cause the group of nodes that receive connections to become small in comparison to graph size. As they become overloaded, these peers are forced to reject future connection requests, which leads to potentially unbounded join delays and high traffic overhead. To investigate these issues, we propose several analytical models for understanding the interplay between resilience and degree. We formulate a Pareto-optimal objective for this tradeoff, introduce new metrics of resilience and degree, analyze them under Pareto lifetimes, and discover that traditional techniques can be highly suboptimal in this setting. We then show evidence that optimization can be solved by a family of step-functions, which connect outgoing edges to uniformly random users whose age exceeds some threshold.

ISBN/ISSN
2161-3559
Comments

Permission documentation is on file.

Publisher
Institute of Electrical and Electronics Engineers
Peer Reviewed
Yes
Citation Information
Zhongmei Yao, Daren B. H. Cline and Dmitri Loguinov. "On the Tradeoff between Resilience and Degree Overload in Dynamic P2P Graphs" 14th IEEE International Conference on Peer-to-Peer Computing (2014)
Available at: http://works.bepress.com/zhongmei_yao/19/