Popular Message-Processing Articles

Message deduplication is the process of detecting repeated deliveries of the same logical message and preventing them from producing duplicate business effects. It is a core reliability technique in message queues, event-driven systems, and distributed applications that use at-least-once delivery.

A poison message is a message that a consumer repeatedly fails to process successfully. The failure may come from invalid data, an incompatible schema, a permanent business-rule violation, corrupted content, or a bug triggered by that specific message.