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The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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grafana/docs/sources/shared/alerts/grafana-managed-alerts.md

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[/docs/grafana/latest/shared/alerts/grafana-managed-alerts/] Grafana managed alerts

Clustering

The current alerting system doesn't support high availability. Alert notifications are not deduplicated and load balancing is not supported between instances; for example, silences from one instance will not appear in the other.

Alert evaluation

Grafana managed alerts are evaluated by the Grafana backend. Rule evaluations are scheduled, according to the alert rule configuration, and queries are evaluated by an engine that is part of core Grafana.

Alerting rules can only query backend data sources with alerting enabled:

  • builtin or developed and maintained by grafana: Graphite, Prometheus, Loki, InfluxDB, Elasticsearch, Google Cloud Monitoring, Cloudwatch, Azure Monitor, MySQL, PostgreSQL, MSSQL, OpenTSDB, Oracle, and Azure Data Explorer
  • any community backend data sources with alerting enabled (backend and alerting properties are set in the [plugin.json]({{< relref "../../developers/plugins/metadata.md" >}}))

Metrics from the alerting engine

The alerting engine publishes some internal metrics about itself. You can read more about how Grafana publishes [internal metrics]({{< relref "../../administration/view-server/internal-metrics.md" >}}). See also, [View alert rules and their current state]({{< relref "../../alerting/old-alerting/view-alerts.md" >}}).

Metric Name Type Description
alerting.alerts gauge How many alerts by state
alerting.request_duration_seconds histogram Histogram of requests to the Alerting API
alerting.active_configurations gauge The number of active, non default alertmanager configurations for grafana managed alerts
alerting.rule_evaluations_total counter The total number of rule evaluations
alerting.rule_evaluation_failures_total counter The total number of rule evaluation failures
alerting.rule_evaluation_duration_seconds summary The duration for a rule to execute
alerting.rule_group_rules gauge The number of rules