Why did Chubby (Google) stick with Paxos instead of switching to Raft?
Chubby's Paxos implementation (Multi-Paxos) was battle-tested over years and underpinned Google's infrastructure. Rewriting it would risk production systems. Raft's advantage is strongest for NEW systems where you can bake comprehensibility into the design from the start, not retrofitting it into a working system.
Answered in
Why Raft Won: Consensus Built for HumansPaxos is correct but hard to understand; Raft made consensus explicit. Same guarantees, different adoption. Why comprehensibility matters in algorithms.
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