medium10 pts · first answer countsprometheusalerting

The for clause in alert rules

What does the for: 10m field do in this Prometheus alerting rule?

- alert: HighErrorRate
  expr: job:http_errors:ratio5m > 0.05
  for: 10m
  labels:
    severity: page

A.The condition must stay true for 10 minutes before the alert moves from pending to firingB.The alert is sent every 10 minutes while it is firingC.The alert is evaluated only once every 10 minutesD.The alert resolves automatically after 10 minutes

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The for clause in alert rules

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