Hi,
This is documented here.
Azure Alerts Fired to Resolved time
After the underlying condition of the alert has subside when does the Azure Monitor mark the alert Status to Resolved? Does it do it at very next evaluation time or it evaluates few times before marking to Resolved?
For example: I have an alert which is fired at 1:00. My frequency of evaluation & aggregation period is every 1 hour. Now the underlying condition subsided at 2:30. So during next evaluation at 3:00 will my alert get "Resolved"?
As per my observations it take few evaluation cycles before the alert is set to "Resolved". Why it is so and where is this documented?
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Stanislav Zhelyazkov 24,686 Reputation points MVP
2020-09-02T13:32:59.75+00:00 -
Soyab 21 Reputation points Microsoft Employee
2020-09-02T14:40:15.207+00:00 Thanks Stan. Copying the sentence from Azure doc.
https://learn.microsoft.com/en-us/azure/azure-monitor/platform/alerts-metric-overview#view-and-resolution-of-fired-alertsThe alert rule monitors the condition for two more times, to send out a resolved notification. The alert rule sends out a resolved/deactivated message when the alert condition is not met for three consecutive periods to reduce noise in case of flapping conditions.