Reflections on Building OceanBase: A Distributed Relational Database Journey
The article shares a senior database engineer's perspective on developing OceanBase, describing the challenges of creating a high‑performance distributed relational database, the strategic choices between open‑source and self‑built solutions, and the product’s evolution toward serving the financial industry.
Feng Ke, a PhD in Computer Applications from Zhejiang University and former CTO of a database vendor, joined Ant Group in 2014 and now serves as an architect for the OceanBase team, focusing on distributed relational databases, data storage, and performance optimization.
He reflects on the surprising decision to build a million‑line distributed database from scratch at Ant Group, likening the effort to constructing a high‑speed rail rather than using a flexible off‑the‑shelf open‑source solution, emphasizing the high technical barriers and long‑term speed advantages.
The piece highlights the rapid growth of China's software industry yet notes the lack of breakthrough commercial products in core infrastructure such as CPUs, operating systems, and databases, and argues that relying solely on open‑source hampers original innovation.
By developing OceanBase internally, Ant Group can create differentiated value, aligning the product with the company's fintech business needs and ensuring high reliability, scalability, and performance for billions of users.
The author discusses the shift from serving internal Ant Group workloads to addressing external customers, noting differences in reliability requirements, technical capabilities, and the need to lower usage barriers for external users.
He outlines three lessons learned: clarifying internal versus external customer success, recognizing divergent internal and external demands, and truly understanding and prioritizing customer pain points rather than purely technical considerations.
Looking ahead, OceanBase aims to expand into the financial sector, leveraging its core features that match financial industry needs, while cautiously approaching public‑cloud deployment to avoid diluting its focus on core technology innovation.
Overall, the article conveys confidence in OceanBase’s “high‑speed rail” advantages, the importance of product differentiation, and the strategic role of Ant Group’s fintech initiatives in driving the database’s commercial success.
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