Dev Tools · 1h ago
The Acknowledgment Gap: How Event-Driven Systems Lose Messages Silently
A subtle bug in event-driven systems causes message loss when components acknowledge receipt before work completes. The author describes how a consumer commits an offset after receiving a 2xx response, but the actual processing fails silently. This gap between acceptance and completion can drop messages without errors or alerts.
Meridian48 take
The piece highlights a dangerous design smell in distributed systems that many developers overlook, but the solution (idempotency and end-to-end acknowledgments) is well-known in production engineering.
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The Acknowledgment Gap - How Event-Driven Systems Lose Messages Without Errors →
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