Confluent - Administrator for Apache Kafka Study Guide

1: Apache Kafka Fundamentals

This chapter establishes the operator's mental model of an Apache Kafka cluster: how brokers, the KRaft controller quorum, topics, partitions, offsets, replication, and the on-disk log fit together. Every subsequent troubleshooting decision (why a partition is offline, why a producer sees `NOT_ENOUGH_REPLICAS`, why offsets vanish after a broker restart) traces back to a fact taught here.