Published onMarch 14, 2026Design a Control Plane for a Distributed Database, Explained Like a Tutorsystem-designdistributed-systemsbackend-developmentarchitectureinterviewsdatabasesraftA tutor-style walkthrough of what a distributed database control plane actually is, why metadata is the crown jewel, where Raft fits in, and how to follow one request end-to-end to remember the whole design.