Checking service availability and host label

[jangaraj]

Prometheus and Grafana Alerting for Absent Metric

There is no option to do that with absent. But you can do something similar with timeshift: create query which will group by selected labels for metric in the past (e. g. 1 hour shift) create query which will group by selected labels for current metric join these 2 queries and detect which timeseries are missing somehow - those are timeseries, which have disappeared meanwhile and you can alert on them That’s a suggestion , which can be implemented in one PromQL query.