Detecting and Handling Delivery Errors in your Event-Driven Architecture

Detecting and Handling Delivery Errors in an Event-Driven Architecture (EDA) can be challenging due to the asynchronous nature of EDA. Delivery errors may occur at different stages, such as connecting to a message broker, publishing messages, delivering messages to subscribers, or processing them. Proper understanding and handling of these errors are crucial for successful message delivery. In this article, we discuss various error mitigation techniques, including using retry loops, store-and-forward patterns, connecting to secondary brokers, making queues and topics durable, configuring durable subscriptions, avoiding auto-acknowledgement of messages, setting up dead letter queues (DLQs), and adjusting message time-to-live (TTL). These techniques help ensure that messages are eventually delivered to the intended recipients and can be processed successfully. It is essential to monitor and manage these errors effectively to maintain a robust EDA infrastructure.