Revisiting fault diagnosis agreement in a new territory

  • Authors:
  • S. C. Wang;K. Q. Yan

  • Affiliations:
  • Chaoyang University of Technology, Wufeng, Taichung County, Taiwan, R.O.C.;Chaoyang University of Technology, Wufeng, Taichung County, Taiwan, R.O.C.

  • Venue:
  • ACM SIGOPS Operating Systems Review
  • Year:
  • 2004

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Abstract

In convention, to consensus has been discussed variously. The way of fault masking is commonly used to reach consensus. However, reaching consensus is not enough in a high reliability application. Therefore, in this study, the fault diagnosis agreement is visited. The proposed protocol does not only reach an agreement for healthy processors but also detect and locate the faulty components in a synchronous unreliable network. We also enlarge the fault tolerance capability by allowing both dormant faults and malicious faults exist in a network. That is, the proposed protocol can tolerate, detect and locate the maximum number of faulty components with the dual failure mode to solve the consensus problem and fault diagnosis agreement problem in a synchronous distributed environment by minimum number of rounds of message exchange.