Fault-Tolerant Consensus in Unknown and Anonymous Networks

Carole Delporte-Gallet (1) , Hugues Fauconnier (1) , Andreas Tielmann (1)

1 LIAFA - Laboratoire d'informatique Algorithmique : Fondements et Applications

This paper investigates under which conditions information can be reliably shared and consensus can be solved in unknown and anonymous message-passing networks that suffer from crash-failures. We provide algorithms to emulate registers and solve consensus under different synchrony assumptions. For this, we introduce a novel pseudo leader-election approach which allows a leader-based consensus implementation without breaking symmetry.

Mots clés: Fault-Tolerance; Consensus; Unknown Networks

Domaines: Algorithme et structure de données [cs.DS]; Calcul parallèle, distribué et partagé [cs.DC]

Carole Delporte-Gallet, Hugues Fauconnier, Andreas Tielmann. Fault-Tolerant Consensus in Unknown and Anonymous Networks. 2009. ⟨hal-00369280⟩