1;3409;0c Time, Clocks, and the Ordering of Events in a Distributed System

Time, Clocks, and the Ordering of Events in a Distributed System

Communications of the ACM, vol. 21, no. 7, 1978
Pages: 558-565DOI: 10.1145/359545.359563

CACM

bibtex

The concept of one event happening before another in a distributed system is examined, and is shown to define a partial ordering of the events. A distributed algorithm is given for synchronizing a system of logical clocks which can be used to totally order the events. The use of the total ordering is illustrated with a method for solving synchronization problems. The algorithm is then specialized for synchronizing physical clocks, and a bound is derived on how far out of synchrony the clocks can become.