Kafka common shell commands

2.2 KAFKA command line
1) View all servers in the current topic

[qingfeng@hadoop102 kafka]$ bin/kafka-topics.sh --zookeeper hadoop102:2181 --list

2) Create a topic

[qingfeng@hadoop102 kafka]$ bin/kafka-topics.sh --zookeeper hadoop102:2181 
--create --replication-factor 3 --partitions 1 --topic first
选项说明：
--topic 定义topic名
--replication-factor  定义副本数
--partitions  定义分区数

3) Delete topic

[qingfeng@hadoop102 kafka]$ bin/kafka-topics.sh --zookeeper hadoop102:2181 
--delete --topic first
需要server.properties中设置delete.topic.enable=true否则只是标记删除。

4) production of news

[qingfeng@hadoop102 kafka]$ bin/kafka-console-producer.sh \
--broker-list hadoop102:9092 --topic first
>hello world
>aa

5) Consumer news

[qingfeng@hadoop103 kafka]$ bin/kafka-console-consumer.sh \
--bootstrap-server hadoop102:9092 --from-beginning --topic first
--from-beginning：会把主题中以往所有的数据都读取出来。

6) View details of a Topic

[qingfeng@hadoop102 kafka]$ bin/kafka-topics.sh --zookeeper hadoop102:2181 \
--describe --topic first

7) modify the number of partitions

[qingfeng@hadoop102 kafka]$bin/kafka-topics.sh --zookeeper ·hadoop102:2181 --alter --topic first --partitions 6

8) bin/kafka-consumer-groups.sh –bootstrap-server Hadoop102:9092 –list