What are common issues with Kafka consumer groups?
Common issues with Kafka consumer groups include rebalancing delays, message duplication, and lag in message processing.
How can I troubleshoot rebalancing delays?
To troubleshoot rebalancing delays, check the consumer group configuration, ensure all consumers are healthy, and monitor network latency.
What causes message duplication in Kafka?
Message duplication can occur due to consumer failures, improper offset management, or multiple consumers processing the same partition.
How do I monitor consumer lag?
You can monitor consumer lag using tools like Kafka's built-in metrics, JMX, or third-party monitoring solutions like Prometheus.
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