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🗳️ Raft Consensus Simulator

Interactive 3D cluster of five nodes where triggering leader elections and network partitions shows how Raft keeps replicated logs consistent without a fixed boss.

Networks & Graph Theory3DModerate60 FPS

A cluster of five simulated servers arranged in a ring elects a leader, replicates a growing log, and keeps agreeing on the same sequence of commands even as you crash nodes and cut the network.

🔬 What It Demonstrates

Leader election via randomized timeouts and majority voting, log replication through AppendEntries messages, and the quorum rule that lets a 5-node cluster survive up to two simultaneous failures without losing data.

🎮 How to Use

Click any node to crash or revive it, kill the leader outright, split the network into a 3/2 partition, propose new client writes, and tune election timeout and latency to see how they change election speed and stability.

💡 Did You Know?

Raft was designed in 2014 specifically to be more understandable than Paxos while offering the same fault-tolerance guarantees, and it now powers etcd, Consul, CockroachDB and countless other production systems.

⚙ Under the hood

Interactive 3D cluster of five nodes where triggering leader elections and network partitions shows how Raft keeps replicated logs consistent without a fixed boss.

raftdistributed-consensusleader-electionreplicated-logsfault-tolerancedistributed-systemsnetworks

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install