The ntp metrics are described briefly here: https://github.com/prometheus/node_exporter/blob/master/docs/TIME.md
The metric "node_ntp_sanity 1" summaries several metrics into "ntp appears to be working properly". I suggest you alert on that as a starting point (i.e. node_ntp_sanity != 1) Also see https://groups.google.com/d/topic/prometheus-users/DOfNK5ypxPQ/discussion -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/6c1306f2-48a1-4d3b-9b89-92b235efb5aao%40googlegroups.com.
