I’m running netdata 1.12.0-1+deb10u1 on an RPi1B+.
I’m monitoring my network health via fping.
Configuration is stock (what you get from ./edit-config) for both fping.conf and health.d/fping.conf.
Once a CRITICAL alarm is raised, fping monitoring stops indefinitely and I have to restart the netdata service in order to resume it.
At the end, it seams that the default configuration for the fping alerts was not taken into consideration.
Issue was fixed by simply applying the default configuration: $ ./edit-config health.d/fping.conf