Token-based Atomic Broadcast using Unreliable Failure Detectors
Many atomic broadcast algorithms have been published in the last twenty years. Token-based algorithms represent a large class of these algorithms. Interestingly, all the token-based atomic broadcast algorithms rely on a group membership service, i.e., none of them uses unreliable failure detectors directly. The technical report presents the first token-based atomic broadcast algorithm that uses an unreliable failure detector, the new failure detector denoted by R instead of a group membership service. The failure detector R is compared with P and S. In order to make it easier to understand the atomic broadcast algorithm, the paper derives the atomic broadcast algorithm from a token-based consensus algorithm that also uses the failure detector R.