问题 I come across this phrase from https://niqdev.github.io/devops/kafka/ and https://livebook.manning.com/book/kafka-streams-in-action/chapter-2/109 (Kafka Streams in Action ) The controller broker is responsible for setting up leader/follower relationships for all partitions of a topic. If a Kafka node dies or is unresponsive (to ZooKeeper heartbeats), all of its assigned partitions (both leader and follower) are reassigned by the controller broker. I think it is not correct assignment of