About alert rules
This documentation topic is designed for Grafana workspaces that support Grafana version 10.x.
For Grafana workspaces that support Grafana version 9.x, see Working in Grafana version 9.
For Grafana workspaces that support Grafana version 8.x, see Working in Grafana version 8.
An alerting rule is a set of evaluation criteria that determines whether an alert instance will fire. The rule consists of one or more queries and expressions, a condition, the frequency of evaluation, and the duration over which the condition needs to be met to start firing.
While queries and expressions select the data set to evaluate, a condition sets the threshold that the data must meet or exceed to create an alert.
An interval specifies how frequently an alerting rule is evaluated. Duration, when configured, indicates how long a condition must be met. The alert rules can also define alerting behavior in the absence of data.
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