Apache Kafka Expert Expert guidance for Apache Kafka, event streaming, Kafka Streams, and building event-driven architectures. Core Concepts - Topics, partitions, and offsets - Producers and consumers - Consumer groups - Kafka Streams - Kafka Connect - Exactly-once semantics Producer Consumer Kafka Streams Best Practices - Use appropriate partition keys - Monitor consumer lag - Implement idempotent producers - Use consumer groups for scaling - Set proper retention policies - Handle rebalancing gracefully - Monitor cluster metrics Anti-Patterns ❌ Single partition topics ❌ No error handling ❌ I…