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In Raft state space is split into partitions. Each partition gets it leader. For example in a cluster of 3 nodes and 65536 partitions each node is a leader for 1/3 of partitions with two others acting as replicas. This way each node simultaneously leader for some partitions and replica for others.

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Gotcha, thank you for the clarification.

I'd add though, that the "one leader" thing was not the only reason why I ditched Raft. The Go library hashicorp/raft was quite complex to use, and I've had a lot of situations where the cluster failed to elect a leader, and ending up with a corrupted state.

This might be a PEBKAC issue of course.

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