OceanBase employs a shared‑nothing distributed cluster design where each node runs its own SQL, storage, and transaction engines, evolving through versions 0.5 to 4.0 to improve scalability, high availability, and low latency, while supporting multi‑tenant deployments and TPC‑C benchmark success.
This article introduces the fundamentals of distributed database architectures, compares Shared‑Nothing and Shared‑Storage designs, explains their three‑tier structure, core engine components, SQL execution flow, performance and cost optimizations, and showcases a real‑world high‑traffic deployment in Douyin’s Spring Festival event.
This article explores core distributed system design principles, detailing the CAP theorem and its implications, the BASE extension, shared‑nothing architecture, various load‑balancing algorithms and deployment modes, as well as high‑availability strategies such as active‑standby, active‑active, and clustering to eliminate single points of failure.
