Plumbing and Semantics: Communication Patterns in Distributed System
Introduction In distributed systems, multiple components running on different machines—physical or virtual—communicate and coordinate to accomplish tasks. Distributed systems building typically focuses on the way components communicate. As things change (e.g. infrastructure, configuration, components), pressures arise and must be accommodated. Most of you have heard of loose coupling, which asserts that communications between components should be as flexible and adaptive as possible. Why is this a design goal? The more rigidly a system is coupled together, the more likely it’ll break down and fail to adapt to change.