A logical clock is a mechanism for capturing chronological and causal relationships in a distributed system.
Logical clock algorithms of note are:
- Lamport timestamps, which are monotonically increasing software counters.
- Vector clocks, that allow for total ordering of events in a distributed system.
- Version vectors, order replicas, according to updates, in an optimistic replicated system.
- Matrix clocks, an extension of vector clocks that also contains information about other processes' views of the system.
Famous quotes containing the words logical and/or clock:
“She thinks of the 4 a.m. lonelinesses that have folded
her up like death, discordant, without logical and
beautiful conclusion. Her teeth break off at the edges.
She would speak.”
—Joy Harjo (b. 1951)
“They’ll take suggestion as a cat laps milk;
They’ll tell the clock to any business that
We say befits the hour.”
—William Shakespeare (1564–1616)