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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Reaching Consensus
verfasst von : Timo Warns
Erschienen in: Structural Failure Models for Fault-Tolerant Distributed Computing
Verlag: Vieweg+Teubner
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Reaching consensus is a fundamental problem for theory and practice of faulttolerant distributed computing. In the consensus problem, each process initially
proposes
a value and is supposed to eventually
decide
a value. The processes are supposed to agree on a proposed value; that is, the decision values must be the same and equal one of the values that were actually proposed. Historically, the consensus problem originates from the SIFT project [Wensley et al., 1978] on building a highly reliable fault-tolerant computer for aircraft control applications. In these applications, critical tasks were executed redundantly, and consensus on the results was reached before further using them.