Building self-stabilizing overlay networks with the transitive closure framework

  • Authors:
  • Andrew Berns;Sukumar Ghosh;Sriram V. Pemmaraju

  • Affiliations:
  • -;-;-

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2013

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Abstract

Overlay networks are expected to operate in hostile environments where node and link failures are commonplace. One way to make overlay networks robust is to design self-stabilizing overlay networks, i.e., overlay networks that can handle node and link failures without any external supervision. In this paper, we first describe a simple framework, which we call the Transitive Closure Framework (TCF), for the self-stabilizing construction of an extensive class of overlay networks. Like previous self-stabilizing algorithms for overlay networks, TCF permits intermediate node degrees to grow to @W(n), independent of the maximum degree of the target overlay network. However, TCF has several advantages over previous work in this area: (i) it is a ''framework'' and can be used for the construction of a variety of overlay networks (e.g. Linear, Skip+), not just a particular network, (ii) it runs in an optimal number of rounds for a variety of overlay networks, and (iii) it can easily be composed with other non-self-stabilizing protocols that can recover from specific bad initial states in a memory-efficient fashion. We demonstrate the power of our framework by deriving from TCF a simple self-stabilizing protocol for constructing Skip+ graphs [R. Jacob, A. Richa, C. Scheideler, S. Schmid, H. Taubig, A distributed polylogarithmic time algorithm for self-stabilizing skip graphs, in: PODC '09: Proceedings of the 28th ACM symposium on Principles of distributed computing, ACM, New York, NY, USA, 2009, pp. 131-140] that guarantees optimal convergence time from any configuration.