Saga pattern in production — choreography vs orchestration, compensating actions, idempotency, saga log durability, and how Temporal and Camunda reshape sagas in 2026.
Idempotency keys, conditional requests, dedup stores, and natural idempotent operations — the production blueprint for safely retryable APIs in 2026 at scale.
ADR-style comparison of Apache Iceberg, Delta Lake, and Apache Hudi for production lakehouses — consequences, trade-offs, migration paths, and a decision rubric for 2026.