Kafka InvalidReplicationFactorException: Larger Than Available Brokers
Fix Kafka's InvalidReplicationFactorException — "Replication factor: 3 larger than available brokers: 1" — in Docker and single-broker dev setups fast.
kafka-docker
23 PostsKafka ListenerNotFoundException: No Matching Listener Fix
Kafka ListenerNotFoundException and 'leader brokers without a matching listener' explained: why the leader lacks the listener, how to reproduce, and the fix.
Kafka: Marking the Coordinator Dead — Causes and Fix
Kafka consumer stuck logging 'Marking the coordinator dead' / 'Group coordinator is unavailable or invalid, will attempt rediscovery'. Here's the real cause and the fix.