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Support for shared subscripition on EdgexFoundry Jatarka's release [message #1860598]

Mon, 21 August 2023 03:36

Chirantan Datta

Messages: 1
Registered: August 2023

Junior Member

Could anyone provide insight into the support for shared subscriptions in EdgexFoundry's Jakarta 2.1 release, considering that MQTT 5's "shared subscription" feature, I've observed that even though EdgexFoundry Jakarta 2.1 doesn't support MQTT 5, I've managed to achieve shared subscriptions using the hivemq broker and the topic "\$share/group/topic". This situation has left me somewhat perplexed. Could someone elucidate the rationale behind this capability in the context of my observations?

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Re: Support for shared subscripition on EdgexFoundry Jatarka's release [message #1860751 is a reply to message #1860598]

Thu, 31 August 2023 13:33

Gambit Support

Messages: 46
Registered: March 2019

Member

Some MQTT 3.x brokers have proprietary extensions to allow the equivalent feature that is standardized in MQTT 5,
since it is so useful.
Being proprietary means exactly that, you have to read the vendor's documentation to determine exactly what it
does.

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