Multi-Paxos vs Strong-Sync Primary/Replica vs Raft: Which HA Model Actually Gets You RPO=0 in 2026?

An architect’s breakdown: quorum DR, split-brain, leases — and why “wait for the standby” isn’t the same as “survive minority failures.” If you’ve never bumped into distributed systems theory, Paxos might sound like an inside joke from a computer-science department. A useful mental model is a roomf