Command Line Installation
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Validate Kafka

Use the following procedure to verify the Kafka installation and configuration.

Before you begin:

  • Verify that ZooKeeper is running before starting Kafka and validating the installation.

  • Set KAFKA_HOME to /usr/hdp/current/kafka-broker.

  1. Start the Kafka service using user kafka:

    su kafka -c "KAFKA_HOME/bin/kafka start"

  2. Create a Kafka topic with the name "test" that has a replication factor of 1 and 1 partition.

    bin/ --zookeeper localhost:2181 --create --topic test --replication-factor 1 --partitions 1

    After running this command, you should see the following output:

    Created topic "test"


    The value of --replication-factor must be less then or equal to the number of Kafka brokers in the cluster. Otherwise an error occurs. Usually the replication-factor equals the number of Kafka brokers in the cluster.

  3. Start a command line Kafka console producer that you can use to send messages. You can type your message once the process is started.

    <KAFKA_HOME>/bin/ --broker-list localhost:9092 --topic test

    You should see your test message, for example:

    This is a message.


    To return to the command prompt after sending the test message, type Ctrl + C.

  4. Start a command line kafka consumer that you can use to read the messages sent by the producer.

    <KAFKA_HOME>/bin/ --zookeeper localhost:2181 --topic test --from-beginning