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Apr 28, 2016 · Databases

How Uber Built Schemaless: A Scalable MySQL‑Based No‑Schema Datastore

This article explains how Uber engineered Schemaless, a highly available, horizontally scalable datastore built on MySQL that stores immutable JSON cells without a fixed schema, detailing its design goals, architecture, data model, trigger system, indexing strategy, and fault‑tolerant read/write mechanisms.