What would be the best approach to handle offline situations for ESP on edge devices?

[Ebele]

We have models running on edge devices with subscriptions (mqtt) to a central message broker (rabbit). In case of no network between the device and the central broker, esp needs to buffer messages.

Not sure how to accomplish this.

My current thoughts:
detect a failing subscription connector, through connector orchestration.

State change MQTT subscription connector from running ---> finished and act on this by starting a file/socket connection which buffers messages to a local file.
State change MQTT subscription connector from finished ----> running, act on this: read the local file and start normal operation (sending messages to a central message broker).

I don't know if this will work. Any thoughts are welcome...

Cheers,
Ebele 

[AndyT_SAS]

Hi Ebele,

I see you opened a track for this.  We will work with you on the track, then update this with the solution. 

Thanks,

Andy