Kafka Consumer Patterns — At-Least-Once, Exactly-Once, and Everything in Between
Master consumer groups, offset management, exactly-once semantics, dead-letter queues, and consumer lag monitoring for production Kafka.
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Master consumer groups, offset management, exactly-once semantics, dead-letter queues, and consumer lag monitoring for production Kafka.
Scale Kubernetes workloads based on queue depth, Kafka lag, cron schedules, and custom metrics. Master KEDA architecture, combine with HPA, and optimize for cold starts and production reliability.
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The senior engineer proposes Kafka for the notification system. You have 500 users. The junior engineer proposes a direct function call. The senior engineer is technically correct and strategically wrong. Knowing when good architecture is overkill is the skill that separates senior from staff.
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