CONSISTENCY PATTERNS

Summary from the TLDR Web Dev newsletter

A system design tutorial on 3 consistency patterns used in distributed systems. Strong consistency ensures that all servers always retrieve the latest data, but it can reduce service availability and increase latency. Eventual consistency, which favors high availability and performance over consistency, ensures that the system will eventually converge to the same state, but it may return stale data in the interim. Weak consistency, which prioritizes high availability and low latency, may or may not return the latest data. The choice of consistency pattern depends on the system requirements and use cases.