Glossary term
What is Vector clock? Meaning for developers
Tracks versions per node to detect concurrent updates. Example: Amazon's Dynamo used them for cart conflicts.
Learn it properly · System DesignLesson 28: Consistency Models: Strong, Eventual and In Between“Eventually consistent” can mean your own comment vanishes on refresh. Consistency is a spectrum, not a switch: linearizable, causal, session guarantees and eventual — what each promises, how conflicts get merged, and why clocks can't be trusted.