Impossibility of distributed consensus with one faulty process
Journal of the ACM (JACM)
Unreliable failure detectors for reliable distributed systems
Journal of the ACM (JACM)
Distributed Algorithms
The weakest failure detectors to solve certain fundamental problems in distributed computing
Proceedings of the twenty-third annual ACM symposium on Principles of distributed computing
DSN '06 Proceedings of the International Conference on Dependable Systems and Networks
Knowledge Connectivity vs. Synchrony Requirements for Fault-Tolerant Agreement in Unknown Networks
DSN '07 Proceedings of the 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks
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We study in this paper the consensus problem in asynchronous models where the set of participating processes is not known. We prove that in this model the consensus is impossible to be solved even if no process may crash. We prove that the asynchronous model augmented with failure detector Σ, which enables to realize a quorum, is sufficient to circumvent this impossibility result. For this, we present an algorithm solving the consensus problem in this model.