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| https://grafana.com/docs/grafana/latest/alerting/fundamentals/alert-rules/alert-instances/ | Learn about Grafana alert instances |
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Alert instances | 105 |
Alert instances
Grafana managed alerts support multi-dimensional alerting. Each alert rule can create multiple alert instances. This is exceptionally powerful if you are observing multiple series in a single expression.
Consider the following PromQL expression:
sum by(cpu) (
rate(node_cpu_seconds_total{mode!="idle"}[1m])
)
A rule using this expression will create as many alert instances as the amount of CPUs we are observing after the first evaluation, allowing a single rule to report the status of each CPU.
{{< figure src="/static/img/docs/alerting/unified/multi-dimensional-alert.png" caption="A multi-dimensional Grafana managed alert rule" >}}