Examples and considerations for Kafka startup commands

Kafka startup command usage example

1. Start a single Kafka server

kafka-server-start config/server.properties

• config/server.properties is the configuration file of the Kafka server.

2. Start multiple Kafka servers

kafka-server-start config/server-1.properties &
kafka-server-start config/server-2.properties &
kafka-server-start config/server-3.properties

• config/server-1.properties, config/server-2.properties, config/server-3.properties are the configuration files of the three Kafka servers.

3. Start the Kafka server using ZooKeeper

kafka-server-start --zookeeper localhost:2181 config/server.properties

• localhost:2181 is the address of ZooKeeper.

4. Start the Kafka server using JMX

kafka-server-start --jmx-port 9999 config/server.properties

• 9999 is the port number of JMX.

5. Start Kafka server using SSL

kafka-server-start --ssl-keystore-location /path/to/keystore.jks --ssl-keystore-password secret --ssl-key-password secret config/server.properties

• /path/to/keystore.jks is the path to the SSL keystore.
• secret is the password for the SSL keystore.

Notes

• The Kafka server must be started with the same configuration on all nodes.
• The Kafka server must be started with the same ZooKeeper connection string on all nodes.
• The Kafka server must be started on all nodes using the same JMX port.
• The Kafka server must be started with the same SSL configuration on all nodes.

Troubleshooting

If the Kafka server cannot start, you can check the following points:

• Check the log file of the Kafka server , to find the error message.
• Check the configuration of the Kafka server to ensure that everything is configured correctly.
• Check whether ZooKeeper is running.
• Check if JMX is running.
• Check whether the SSL configuration is correct.

Other resources

• [Kafka official documentation](https://kafka.apache.org/documentation/)
• [Kafka Configuration Document](https://kafka.apache.org/documentation/config/)
• [Kafka Troubleshooting Document](https://kafka.apache.org/documentation/troubleshooting/)

The above is the detailed content of Examples and considerations for Kafka startup commands. For more information, please follow other related articles on the PHP Chinese website!