Kafka Connect Deep Dive – Error Handling and Dead Letter Queues | Confluent

What this post added

Introduces and details Kafka Connect's error handling capabilities, specifically focusing on the 'fail fast' mode, silently ignoring errors, and implementing a Dead Letter Queue (DLQ) for problematic messages. It provides configuration examples for `errors.tolerance`, `errors.deadletterqueue.topic.name`, and `errors.deadletterqueue.context.headers.enable`. It also explains how to inspect DLQ messages and mentions JMX metrics for monitoring.