Here’s a short tutorial to help you get started with Kafka:
- Download and install Kafka: You can download Kafka from the Apache Kafka website (https://kafka.apache.org/downloads). Follow the installation instructions for your operating system.
- Start the Kafka server: After installation, start the Kafka server by running the following command in a terminal window:
bin/zookeeper-server-start.sh config/zookeeper.properties bin/kafka-server-start.sh config/server.properties
- Create a topic: To create a topic in Kafka, run the following command:
bin/kafka-topics.sh --create --topic <topic-name> --bootstrap-server localhost:9092
<topic-name> with the name of your topic.
- Send messages: To send messages to your Kafka topic, run the following command:
bin/kafka-console-producer.sh --topic <topic-name> --bootstrap-server localhost:9092
This will start a console where you can enter messages. Type a message and press enter to send it to the Kafka topic.
- Consume messages: To consume messages from your Kafka topic, run the following command in a new terminal window:
bin/kafka-console-consumer.sh --topic <topic-name> --from-beginning --bootstrap-server localhost:9092
This will start a console where you can see the messages that have been sent to your Kafka topic. Any new messages sent to the topic will also appear in this console.
That’s it! You now have a basic setup for sending and consuming messages using Kafka. From here, you can explore more advanced features of Kafka, such as configuring producers and consumers, using Kafka Connect to integrate with external systems, and using Kafka Streams for real-time data processing.