CAP Theorem & PACELC: A Senior Engineer's Deep Dive
Full-depth guide to CAP theorem and PACELC — the GitHub 2018 incident, why 'choose 2 of 3' is misleading, PACELC's EL trade-off (latency vs consistency during normal operation), database classification matrix, conflict resolution costs, and Brewer's 12-year correction.
Data Consistency & Transactions
Full-spectrum guide to distributed consistency models — from Linearizability to Eventual Consistency, Session Guarantees (Read-Your-Writes, Monotonic Reads), causal vs data-centric lenses, consistency anomalies with real production bugs, S3 case study, and per-operation decision matrix. Covers ACID, BASE, CAP, PACELC, and advanced internals.
