heartbeat detection these do not exist in memory in redis

[Tong-07]

How to make multiple services, heartbeat detection these do not exist in memory in redis or database can be achieved

[andsel]

Hi @Tong-07 could you describe better what you mean for heartbeat detection? Something to check the status of Moquette when it's configured as a (init.d?) service?

[Tong-07]

That is to say, when the client times out, it can not use memory detection, and can use other databases to quickly process the detection. The information subscribed to the channel does not exist in the local memory but is placed in the database for easy viewing.

[andsel]

So specifically from the broker perspective, once a connection timeout, because it doesn't transmit any data or ping in the keepAlive *1.5 time window, that do you expect from the broker? Should it notify a callback, and in the callback you implement what you need?
Please, state a clear requirement from the broker point of view, so that I can understand better what's needed and if it fits MQTT protocol and broker design.