Kafka3.0.0 version - producer, consumer command line operation

1. Kafka cluster deployment

• Kafka cluster deployment reference lz this blog post link: https://wwwxz.blog.csdn.net/article/details/129804602

Two, three server information

• three servers

  name of server	server ip
  centos7 virtual machine 1	192.168.136.27
  centos7 virtual machine 2	192.168.136.28
  centos7 virtual machine 3	192.168.136.29

3. Producer command line operation

3.1. View the example of operating producer command parameters

• View operation producer command parameters

  [root@localhost kafka-3.0.0]# bin/kafka-console-producer.sh
  

  

3.2. View the detailed explanation of the command parameters of the operation producer

• Detailed Explanation of Producer Command Parameters

  parameter	describe
  –bootstrap-server <String: server toconnect to>	The connected Kafka Broker host name and port number.
  –topic <String: topic>	The topic name of the operation.

3.3. Example of producer sending message

• Create a news topic

  [root@localhost kafka-3.0.0]# bin/kafka-topics.sh --bootstrap-server 192.168.136.28:9092 --create --partitions 1 --replication-factor 3 --topic news
  

  

• Producers send messages to the news topic

  [root@localhost kafka-3.0.0]# bin/kafka-console-producer.sh --bootstrap-server 192.168.136.28:9092 --topic news
  >hello world
  >this is a news topic
  

  

4. Consumer command line operation

4.1. View an example of operating consumer command parameters

• View operation consumer command parameters

  [root@localhost kafka-3.0.0]# bin/kafka-console-consumer.sh
  

  

4.2. View the detailed explanation of the operation consumer command parameters

• Detailed Explanation of Consumer Order Parameters

  parameter	describe
  –bootstrap-server <String: server toconnect to>	The connected Kafka Broker host name and port number.
  –topic <String: topic>	The topic name of the operation.
  –from-beginning	Consume from scratch.
  -group <String: consumer group id>	Specify the consumer group name.

4.3. Example of data in consumer consumption news topic

• Data in the Consumer News (news) topic

  [root@localhost kafka-3.0.0]# bin/kafka-console-consumer.sh --bootstrap-server 192.168.136.28:9092 --topic news
  

• Producer sends abcdef message to news topic

  [root@localhost kafka-3.0.0]# bin/kafka-console-producer.sh --bootstrap-server 192.168.136.28:9092 --topic news
  >hello world
  >this is a news topic
  >abcdef
  >
  

  

• Consumers check the data in the news (news) topic, whether it can be received

  [root@localhost kafka-3.0.0]# bin/kafka-console-consumer.sh --bootstrap-server 192.168.136.28:9092 --topic news
  abcdef
  

  

4.4. An example of consumer consumption of all data (including historical data) in the topic of news

• Consumers consume all the data in the news topic (including historical data)

  [root@localhost kafka-3.0.0]# bin/kafka-console-consumer.sh --bootstrap-server 192.168.136.28:9092 --topic news --from-beginning