Understanding Kafka Consumer Offset

Date: 2024-11-20

Kafka consumer offsets track a consumer's progress within a topic partition, acting as markers for the last consumed message. Proper offset management is crucial for reliable message processing, ensuring messages are consumed only once. Offsets can be automatically or manually managed. Kafka stores offsets in the __consumer_offsets topic. Monitoring offsets and lag (unprocessed messages) is essential for performance evaluation and troubleshooting. Understanding offsets allows for building resilient and efficient Kafka-based applications.

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