Tag
transactional-outbox
- Jun 3, 2026 Exactly-Once Delivery Across System Boundaries The dual-write problem, the outbox that removes it, and the narrow sense in which a message can be applied exactly once when the database and the broker are separate systems. backend systems
- Oct 15, 2025 Dual Writes and the Divergence They Inevitably Produce Why writing to two stores from application code cannot be made atomic, how partial failure and reordering corrupt one side, and which log-based alternative removes the window. software architecture
- Mar 7, 2023 The Job Record State Machine: Enqueue, Claim, and Acknowledge How a durable job queue represents work as a record with an explicit state machine, why claiming must be a single conditional update, and which guarantees the record cannot provide. backend systems