JUCS - Journal of Universal Computer Science 11(5): 703-711, doi: 10.3217/jucs-011-05-0703
Replication: Understanding the Advantage of Atomic Broadcast over Quorum Systems
expand article infoRichard Ekwall‡, Andre Schiper‡
‡ Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland

Corresponding author: Richard Ekwall ( nilsrichard.ekwall@epfl.ch )

© Richard Ekwall, Andre Schiper.
This article is freely available under the J.UCS Open Content License.
Citation: Ekwall R, Schiper A (2005) Replication: Understanding the Advantage of Atomic Broadcast over Quorum Systems. JUCS - Journal of Universal Computer Science 11(5): 703-711. https://doi.org/10.3217/jucs-011-05-0703
Open Access
Abstract
Quorum systems (introduced in the late seventies) and atomic broadcast (introduced later) are two techniques to manage replicated data. Despite of the fact that these two techniques are now well known, the advantage of atomic broadcast over quorum systems is not clearly understood. The paper explains exactly in what cases atomic broadcast is a better technique than quorum systems to handle replication.
Keywords
atomic broadcast, quorum systems, replication, isolation