Xiaokun's Architecture Exploration Notes

Jul 20, 2025 · Databases

How to Achieve Linear Consistency in Single-Leader Replication: Challenges and Solutions

This article examines eventual and linear consistency in leader‑based replication, explains read‑your‑writes and shared‑data scenarios, discusses replication lag, failover trade‑offs, multi‑data‑center risks, and shows how consensus systems like ZooKeeper and etcd implement true linear consistency.