Your server comes pre-installed with Apache Kafka and Apache Zookeeper. Kafka is a distributed streaming platform, and Zookeeper acts as the coordination service required for Kafka to function.
1. Verifying Service Status
Apache Kafka and Zookeeper run as system services. To verify that both are active and running correctly, use the following commands via your terminal:
Check Zookeeper:
systemctl status zookeeper
Check Kafka:
systemctl status kafka
Look for the text Active: active (running) in the output.
2. Port Verification
Kafka and Zookeeper rely on specific network ports to communicate. If you cannot connect to your instance, ensure these ports are open and listening.
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Zookeeper (Port 2181): Manages the cluster configuration.
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Kafka (Port 9092): The primary port for producing and consuming messages.
Verify Ports:
# Check if ports are listening
ss -tlnp | grep -E '2181|9092'
You should see output similar to LISTEN 0 50 *:2181 and *:9092.
3. The "One-Click" Health Check
To verify your entire setup in seconds, copy and paste this command into your terminal. It will check the status of both services, confirm the ports are listening, and provide a confirmation message:
systemctl is-active zookeeper && \
systemctl is-active kafka && \
ss -tlnp | grep 2181 && \
ss -tlnp | grep 9092 && \
echo "✅ Kafka and Zookeeper are healthy"
4. Service Management
If you need to restart, stop, or start your services, use the standard systemctl commands:
| Action | Command |
| Restart Services | systemctl restart zookeeper kafka |
| Stop Services | systemctl stop zookeeper kafka |
| Start Services | systemctl start zookeeper kafka |
Pro-Tip: Your Kafka installation is located at
/opt/kafka. All logs for troubleshooting can be found in/opt/kafka/logs/.
Need Help?
If the health check fails or your services won't start, please do not hesitate to reach out to our support team.
