Toolgeist › Developer

Raft Consensus Simulator — Leader Election & Log Replication, Visual

Watch the Raft consensus algorithm play out visually — leader election among simulated cluster nodes, log replication across followers, and recovery from a simulated network partition — the algorithm real distributed databases like etcd and CockroachDB use to keep replicas consistent, made visible instead of abstract.

How to use Raft Consensus Simulator

1. Start the cluster simulation.
2. Watch leader election happen among nodes.
3. Observe log entries replicate to followers.
4. Trigger a network partition and watch recovery.

Frequently asked questions

What problem does Raft actually solve?

Keeping multiple replicas of data consistent across a cluster of machines even when nodes fail or the network partitions — the same fundamental problem every real distributed database has to solve.

Where is Raft used in real systems?

etcd (which backs Kubernetes), CockroachDB, and Consul are notable real systems built on Raft consensus, chosen specifically because Raft was designed to be more understandable than the earlier Paxos algorithm.

What happens during a simulated network partition?

Nodes cut off from the majority cannot commit new log entries even if they elect a local leader, since Raft requires a majority quorum — the simulator lets you watch that safety property in action rather than just reading about it.

Related Developer tools

• JSON to Protobuf Schema
• JSON to SQL DML
• JSON Minifier
• Database Indexing Studio
• Cache Eviction Policy Simulator — LRU vs LFU vs FIFO vs Belady
• TCP Congestion Control Simulator — Reno vs CUBIC

Also searched for: raft consensus algorithm simulator · leader election visualization online · distributed systems consensus demo

Browse all 738 free tools on Toolgeist →