[hadoop@datanode3 logs]$ kafka-topics.sh --delete --zookeeper datanode1:2181 --topic first
Topic first is marked for deletion.
Note: This will have no impact if delete.topic.enable is not set to true.
[hadoop@datanode3 logs]$ kafka-topics.sh --create --zookeeper datanode1:2181 --partitions 2 --replication-factor 3 --topic first
Error while executing topic command : Topic 'first' already exists.
[2019-07-13 07:11:05,073] ERROR org.apache.kafka.common.errors.TopicExistsException: Topic 'first' already exists.
(kafka.admin.TopicCommand$)
報錯原因是我當時kafka-console-producer.sh和kafka-console-consumer.sh都還在運行，刪除只刪除了部分patition
后來關掉kafka-console-producer.sh和kafka-console-consumer.sh進程后，再刪除，再創建同名的topic就不報錯了。
