Best Practices Using MQTT to Connect Millions of IoT Devices
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Christian Götz, co-founder and CEO of HiveMQ, discusses the MQTT protocol as the standard for IoT connectivity, emphasizing its simplicity, guaranteed delivery, and scalability for millions of devices. With extensive experience and a solid customer base, HiveMQ is utilized in various industries, including automotive, for reliable communication. Best practices for implementing MQTT include ensuring a mature broker, utilizing security measures, and conducting thorough testing for high-scale scenarios.
Best Practices Using MQTT to Connect Millions of IoT Devices
- 1. Christian Götz, Co-Founder & CEO of HiveMQ IoT World 2019, Santa Clara Best Practices Using MQTT to Connect Millions of IoT Devices
- 2. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. • Co-Founder & CEO of HiveMQ/dc-square • MQTT Expert with 7 years of experience • Seen & supported 130+ customers from Day 1 to production • Member of the MQTT Standardization Technical Committee • Speaker & Author in international conferences and magazines Christian Götz @goetzchr Introduction
- 4. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. MQTT Basics temperature sensor MQTT-Broker laptop mobile device publish: “21°C“ publish: “21°C“ publish: “21°C“ subscribe subscribe
- 5. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. MQTT Highlights Instant Data Movement Guaranteed Delivery Simple Usage Reduced attack surface Low Overhead Low Cost $
- 6. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. MQTT is the IoT standard Source: Google Trends
- 7. 02 Our MQTT Experience & Use Cases
- 8. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. We built HiveMQ #1 Enterprise MQTT broker High-performant Java Client HiveMQ Open Source Version
- 9. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. HiveMQ Usage 10,000,000 IoT devices more than
- 10. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Customers trusting in us 130+ customers
- 11. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. HiveMQ powers Horizon 4 Platform Scale to Millions of Devices Platform exceeded Expectations
- 12. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Trusted by BMW for Connected Car Foundation for all Vehicle Communication Cloud Native Deloyment with Enterprise Integrations
- 13. 04Scaling MQTT
- 14. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. What does scale mean? 1,000 10,000 100,000 1,000,000 10,000,000 100,000,000
- 15. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. 15 node3 node2 node1 Use Clustering
- 16. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Elastically adding nodes 16 HiveMQ - Linear Scalability - Example: Add node 3 nodes 4 nodes
- 17. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Elastically removing nodes 17 HiveMQ - Linear Scalability - Example: Add node 3 nodes4 nodes
- 18. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Address as one node 18 HiveMQ - Linear Scalability - Example: Add node 3 nodes
- 19. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Cloud Native Technologies
- 20. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Source: http://www.alenk.de/assets/2017-12-06_AWS-Talk-pub2.pdf Source: http://www.alenk.de/assets/2017-12-06_AWS-Talk-pub2.pdf
- 21. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Scalability depends mainly on MQTT Broker • Pick a mature broker that is proven in business-critical deployments • Support of 100% MQTT features • MQTT is stateful - clustering is key to enable true high availability • Benchmark your individual scenario - don't trust general benchmarks • Must coping with alleged Edge Cases like network splits • Distributed Systems are hard - Ease of use/operation is key! => Scaling MUST be viewed holistically!
- 22. 05Best Practises
- 23. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Holistic Security Design
- 24. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Best practices Infrastructure & OS 24 Infrastructure Only expected traffic gets forwarded to downstream systems UDP - not used by MQTT - can be blocked Allow only traffic to ports, needed for your MQTT system (1883, 8883) Operating System Use SELinux, keep libraries and software updated
- 25. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Best practices MQTT Broker 25 Use TLS (or even mutual TLS) Use Authentication (make it revokable) Use Authorization with separate topic namespaces Throttling your MQTT clients to prevent overload Configure message size to maximum of your use case
- 26. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. End 2 End Scale Testing
- 27. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Resilience Testing
- 28. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Build the best possible Playground
- 29. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Trouble-Shooting
- 30. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Monitoring, Logging & Alerting
- 31. 06Conclusion
- 32. Confidential and Proprietary. Copyright © by dc-square GmbH. All Rights Reserved. Scaling MQTT Summary • MQTT is the IoT Standard Protocol • MQTT is broadly used in different industries for IoT use cases • Scaling MQTT must always be viewed holistically • Do your homework for high scale scenarios (independent of MQTT) • Picking matured and battle-tested technology is key