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Documentation Grafana documentation Alerting Introduction Alert rule evaluation Evaluation within a group

How rules are evaluated within a group

Each evaluation group contains an evaluation interval that determines how frequently the rule is evaluated. For instance, the evaluation may occur every 10s, 30s, 1m, 10m, etc.

Rules in different evaluation groups can be evaluated simultaneously.

Rules within the same evaluation group can be evaluated simultaneously or sequentially, depending on the rule type:

• Grafana-managed rules within the same group are evaluated concurrently—they are evaluated at different times over the same evaluation interval but display the same evaluation timestamp.

• Data source-managed rules within the same group are evaluated sequentially, one after the other—this is useful to ensure that recording rules are evaluated before alert rules.

• Grafana-managed rules imported from data source-managed rules are also evaluated sequentially, in the order they appear in the original rule group. Grafana runs them as an evaluation sequence: each rule starts after the previous one finishes. This preserves the evaluation order when a rule depends on a preceding recording rule.

For Grafana-managed rules that depend on recording rule results, you can define an explicit evaluation order with a rule sequence. The sequence evaluates recording rules first, followed by alert rules, at a shared interval. For instructions, refer to Configure rule sequences.