Xiaolei Talks DB
May 15, 2022 · Databases
How TiDB Achieves Multi-Active High Availability Across Multiple Data Centers
This article explains TiDB's multi‑active high‑availability architectures—including same‑city dual‑center, triple‑center, and two‑region three‑center deployments—detailing hard requirements, RPO/RTO goals, placement‑rule configurations, and practical disaster‑recovery recommendations for distributed database clusters, and how adaptive sync modes affect failover performance.
Distributed DatabasePlacement RuleTiDB
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