Research note: From ♢W to Ω: A simple bounded quiescent reliable broadcast-based transformation

  • Authors:
  • Achour Mostefaoui;Sergio Rajsbaum;Michel Raynal;Corentin Travers

  • Affiliations:
  • IRISA, Campus de Beaulieu, 35042 Rennes Cedex, France;Instituto de Matemáticas, UNAM, D. F. 04510, Mexico;IRISA, Campus de Beaulieu, 35042 Rennes Cedex, France;IRISA, Campus de Beaulieu, 35042 Rennes Cedex, France

  • Venue:
  • Journal of Parallel and Distributed Computing
  • Year:
  • 2007

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Abstract

Failure detectors in the class @?W ensure that every crashed process is eventually suspected by a correct process, and eventually there is a correct process that is never suspected. Failure detectors in the class @W ensure that eventually all the processes trust the same correct process. This paper presents a very simple and efficient algorithm that transforms any failure detector of the class @?W into a failure detector of the class @W. The simplicity of the transformation is due to its modular design-it is based on an underlying reliable broadcast facility. It is quiescent and requires each message to carry only one process identity, in addition to the control information appended to a message by the reliable broadcast mechanism (namely, a sequence number and the identity of its sender).