Ask Me Anything About MQTT | August 2022 Edition

Drawing upon the success of our previous ‘Ask Me Anything About MQTT' webinar and on popular demand, we continue a webinar series under the same name. In this August 2022 edition, our MQTT experts answered questions around MQTT Topics, MQTT Security, MQTT Sparkplug, and OPC UA.

Jens Deters, Head of Professional Services at HiveMQ, and Matthias Hofschen, Senior Consultant Professional Services at HiveMQ, personally answered questions moderated live by Ravi Subramanyan, Director of Industry Solutions Manufacturing during the webinar.

Feel free to ask questions on the HiveMQ Community Forum.

Contents of the Webinar:

• 0:00 - Introduction
• 04:05 - Sparkplug: for a non-primary application. What is the expected startup procedure?
• 09:25 One of our big concerns is scalability. We are looking to develop infrastructure that will need to cope with potentially hundreds of thousands if not millions of devices. Is MQTT suitable in this instance, and if so what are the bottlenecks to look out for?
• 14:40 What's the best way to connect to multiple remote brokers?
• 19:38 Does anyone consider the need to certify the implementation of MQTT / Sparkplug Clients on devices / applications for industry?
• 21:58 We are using AWS for cloud. Is it possible to use HiveMQ together with AWS IoT, or does HiveMQ replace AWS IoT? What are the advantages and disadvantages of using HiveMQ over AWS IoT
• 28:22 Why I need to implement Sparkplug specification instead of MQTT?
• 36:03 Does HiveMQ support communication from/to IoT devices based on microPython?
• 38:05 Is your product mainly located to bring one or more production lines to cloud to combine and be reachable on cloud worldwide in IIoT architecture?
• 42:58 Is it possible for customers to organize their own certificate system?
• 49:14 OPC UA vs Sparkplug. What separates MQTT from other similar standards based protocols when it comes to enabling IIoT data connectivity?
• 54:19 What would be the expected behavior of a subscriber when an out of order message comes in (sequence number not as expected)?
• 58:58 What is the most common form of broker cluster deployment in Industrial/Manufacturing projects? In the cloud or on-prem? For the cloud architectures, do IIoT devices connect to the broker directly over the public internet or are some additional broker instances running in the DMZ?