Confluent - Administrator for Apache Kafka Study Guide

7: Troubleshooting

This chapter turns the observability surface from the previous chapter into an operational discipline: mapping a specific broker symptom to the JMX metric that confirms it, then to the configuration change, CLI action, or code fix that clears it. It walks eight failure surfaces an Apache Kafka administrator meets in production, from under-replicated partitions through disk-full retention misconfiguration, and anchors each to the exact `kafka-*` command, `server.properties` key, and log file that isolates the root cause on a KRaft-based cluster.