Consistency algorithms for optimistic replication
Richard G. Guy, Gerald J. Popek, Thomas W. Page · 2002
This paper presents a practical set of algorithms for maintaining the consistency of a replicated file system with an optimistic update policy. These algorithms permit a system which allows updates to an object so long as any copy is available; the algorithms then return the various copies to consistency at their first opportunity. These algorithms have been used to build the Ficus replicated file system.>