#transactional-outbox

Idempotent @Retry vs Transactional Outbox for duplicate‑write prevention in Quarkus

Goal: guarantee that a Quarkus service annotated with @Retry does not create duplicate database rows when a transient exception forces a retry of the emitting method. Constraint: the service processes only a few dozen messages per minute, so added latency or operational complexity from an extra outbox table and its processor must be weighed against the risk