iot - Effeciently detect if heartbeat not recieved (and fire an event)

Question

I have devices which send heartbeats every 15 seconds. I am wondering what are good approaches to being able to detect every 15 seconds.

One naive approach I can think of is, we know all our machine and their machineIds. We create a set and every time we receive a heartbeat (containing the machine Id) and we remove it from the set. After 30 seconds (nyquist) we check the set and any remaining machine Ids tell us what machines didn't send a heartbeat. Any better approaches than this?

Thanks

question from:https://stackoverflow.com/questions/65651115/effeciently-detect-if-heartbeat-not-recieved-and-fire-an-event

Answer 1

Waitting for answers