Patent · US Expired

Failure detector with consensus protocol

US6687847B1 · kind B1 · utility

57Cited by
14References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 19, 2000
Grant dateFeb 3, 2004
Priority date
Expiry dateApr 19, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F11/0793
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

New failure detector mechanisms particularly suitable for use in asynchronous distributed computing systems in which processes may crash and recover, and two crash-recovery consensus mechanisms, one requiring stable storage and the other not requiring it. Both consensus mechanisms tolerate link failures and are particularly efficient in the common runs with no failures or failure detector mistakes. Consensus is achieved in such runs within 3□ time and with 4n messages, where □ is the maximum message delay and n is the number of processes in the system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.