A generic self-repair approach for overlays

  • Authors:
  • Barry Porter;Geoff Coulson;François Taïani

  • Affiliations:
  • Computing Department, Lancaster University, Lancaster, UK;Computing Department, Lancaster University, Lancaster, UK;Computing Department, Lancaster University, Lancaster, UK

  • Venue:
  • OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
  • Year:
  • 2006

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Abstract

Self-repair is a key area of functionality in overlay networks, especially as overlays become increasingly widely deployed and relied upon Today's common practice is for each overlay to implement its own self-repair mechanism However, apart from leading to duplication of effort, this practice inhibits choice and flexibility in selecting from among multiple self-repair mechanisms that make different deployment-specific trade-offs between dependability and overhead In this paper, we present an approach in which overlay networks provide functional behaviour only, and rely for their self-repair on a generic self-repair service In our previously-published work in this area, we have focused on the distributed algorithms encapsulated within our self-repair service In this paper we focus instead on API and integration issues In particular, we show how overlay implementations can interact with our generic self-repair service using a small and simple API We concretise the discussion by illustrating the use of this API from within an implementation of the popular Chord overlay This involves minimal changes to the implementation while considerably increasing its available range of self-repair strategies.