A logical clock is a mechanism for capturing chronological and causal relationships in a distributed system. Often, distributed systems may have no physically synchronous global clock. … The first logical clock implementation, the Lamport timestamps, was proposed by Leslie Lamport in 1978 (Turing Award in 2013).

What is logical clock and physical clock?

It is a physical process and also a method of measuring that process to record the passage of time. … Most of the physical clocks are based on cyclic processes such as a celestial rotation. Logical clock. It is a mechanism for capturing causal and chronological relationships in a distributed system.

What is logical clock explain what are the limitations of Lamport clock?

A Lamport logical clock is an incrementing counter maintained in each process. Conceptually, this logical clock can be thought of as a clock that only has meaning in relation to messages moving between processes. When a process receives a message, it resynchronizes its logical clock with that sender (causality).