# 19 for 19 minutes, but I make it 18 just to give a bit of slack.
- alert: historical_missing_metric
expr: |-
- count_over_time(up{job="prometheus"}[19m]) <= 18 unless on() present_over_time(ALERTS[19m]) unless on() time() - node_boot_time_seconds{instance="kdwg:9101"} <= 60 * 17
+ count_over_time(up{job="prometheus"}[19m]) <= 18 unless on() present_over_time(ALERTS[19m]) unless on() time() - node_boot_time_seconds{instance="kd"} <= 60 * 17
labels:
severity: warn