Pepe Cano
5c1b263664
* docs(alerting): improve `Intro > Alert rule evaluation` docs * Update Introduction to Grafana Alerting * Simplify `Intro > Alert rules` and related docs * minor copy change phrasing GMA and DS differences * fix vale error
38 lines
1.7 KiB
Markdown
38 lines
1.7 KiB
Markdown
---
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canonical: https://grafana.com/docs/grafana/latest/alerting/fundamentals/alert-rule-evaluation/evaluation-within-a-group/
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description: An alert instance is considered stale when its series disappears for a number of consecutive evaluation intervals. Learn how Grafana resolves them.
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keywords:
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- grafana
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- alerting
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- guide
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- state
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labels:
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products:
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- cloud
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- enterprise
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- oss
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title: How rules are evaluated within a group
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menuTitle: Evaluation within a group
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weight: 150
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refs:
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import-ds-rules:
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- pattern: /docs/grafana/
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destination: /docs/grafana/<GRAFANA_VERSION>/alerting/alerting-rules/alerting-migration/
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- pattern: /docs/grafana-cloud/
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destination: /docs/grafana-cloud/alerting-and-irm/alerting/alerting-rules/alerting-migration/
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---
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# How rules are evaluated within a group
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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.
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Rules in different evaluation groups can be evaluated simultaneously.
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Rules within the same evaluation group can be evaluated simultaneously or sequentially, depending on the rule type:
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- **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.
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- **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.
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- **Grafana-managed rules [imported from data source-managed rules](ref:import-ds-rules)** are also evaluated sequentially.
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