It was late on a Friday afternoon — the worst possible time for a production bug. A colleague called me over: “The transaction isn’t rolling back. I added @Transactional to the method but it’s still committing even when the exception is thrown.” He showed me the code. The annotation was there. The method was right. […]
It was a perfectly ordinary Wednesday morning. I was reviewing the logs from our notification service — the one that sends a daily digest email to users — when I noticed something unsettling. Three copies of the same email had gone out to every user. Three. And the timestamps? Within milliseconds of each other. The
ShedLock: Distributed Scheduling Without the Chaos Read More »
It was a Tuesday morning in production. An order had just been placed, the database row was committed, but the RabbitMQ message never arrived. The downstream service never processed it. The order sat there, forever in a “pending” state, and nobody knew why. Sound familiar? If you’ve worked on event-driven microservices long enough, you’ve probably
The Transactional Outbox Pattern: Never Lose a Message Again Read More »