I'm collecting metrics from a few servers. I'd like to somehow monitor that servers are running and reporting data. I'm migrating from Sensu, where the concept of a server is an explicit thing and when that thing stops sending data, it automatically triggers an event. I'm struggling to do something similar with opentelemetry/signoz. I see that the infra overview has a status, what is that based on, can I alert on that somehow?

To alert on, you take a metric from the server and see if it is still being reported by the host by comparing it to the same with some time shift.

thanks, didn't know about the time shift thing, interesting, set it up, looks good, will need to test it. I guess once the server hasn't been reporting for the configured time shift, it will no longer report anything for that server and the alert would resolve?

yes

makes sense, need a way to resolve the alert when I remove a server. and I can adjust the time shift to have it alert for a longer time.