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Dec 16, 2021 · Databases

How Alibaba Cloud RDS MySQL Three‑Node Enterprise Uses X‑Paxos for High Availability

This article explains the architecture of Alibaba Cloud RDS MySQL three‑node enterprise edition, detailing the X‑Paxos consensus protocol, node roles, election mechanisms, weight‑based leader selection, state‑machine diagnostics, disk health probing, and reverse‑heartbeat design that together provide a robust high‑availability database solution.