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distributed systems · Deep dive

etcd — the reference Raft implementation

12 min read
Scaffold

The Raft-based key-value store powering every Kubernetes cluster on Earth. 3 or 5 node quorum, Raft leader per range, watch API, MVCC. If etcd goes down, your cluster can't schedule pods.

This deep-dive is a scaffold.

The overview above is ready. The full-fledged deep dive with explanations, code walkthroughs, and animated diagrams is queued for the next authoring pass.

Meanwhile, return to the main consensus paxos raft page for the full concept explanation including animated walkthroughs and real-world scenario visualizations.