Lien de la note Hackmd
Est-ce qu’on est capable de creer un consensus asynchrone ?
Oui on l’utilise tous les jours Un papier theorique dit non mais si c’etait le cas Facebook et machin ne fonctionneraient pas En tout cas c’est impossible dans un mode completement asynchrone
FLP
Abstract of the paper The consensus problem involves an asynchronous system of processes,some of which may be unreliable. The problem is for the reliable processes to agree on a binary value. In this paper, it is shown that every protocol for this problem has the possibility of nontermination, even with only one faulty process.
Impossibility result No completely asynchronous consensus protocol can tolerate even a single unannounced process death.
Problem description
Configurations
