Leslie Lamport, Dahlia Malkhi, and Lidong Zhou
We introduce a class of Paxos algorithms called Vertical Paxos, in which
reconfiguration can occur in the middle of reaching agreement on an
individual state-machine command. Vertical Paxos algorithms
use an auxiliary configuration master that facilitates agreement on reconfiguration. A special case of these algorithms leads to traditional
primary-backup protocols. We show how primary-backup systems in
current use can be viewed, and shown to be correct, as instances of
Vertical Paxos algorithms.
© 2008 Microsoft Corporation. All rights reserved.
Leslie Lamport, Dahlia Malkhi, and Lidong Zhou. Brief Announcement: Vertical Paxos and Primary-Backup Replication, Association for Computing Machinery, Inc., August 2009.