Alarm

The Payload of the alarm notification message is in Json format and contains the following fields:

The alarm will not be generated repeatedly. That is to say, if the high CPU usage alarm has been activated, the same alarm will not appear during its activation. The alarm will be automatically deactivated when the monitored item returns to normal. However, it also supports manual deactivation by the user (if the user clearly does not care about the alarm). Users can view current alarms (activated alarms) and historical alarms (deactivated alarms) on the Dashboard, and they can also use the HTTP API provided by EMQX Broker to Query and manage alarms.

EMQX Enterprise raises an alarm when the license expires in less than 30 days, or if the number of connections exceeds the high watermark. User can adjust the high/low watermark for the number of connections according to the actual situation.