New in Grafana 6.6: Forcing minimum alert evaluation frequency

Grafana 6.6 introduces a new feature that allows administrators to enforce a minimum interval between alert rule evaluations, addressing a longstanding request to manage backend load caused by overly frequent user-defined alerts. Implemented by @Uepoch, this feature sets a default alert evaluation interval of one minute, which can be adjusted by users, but administrators now have the ability to set a global minimum using the new configuration option, alerting.min_interval_seconds. This ensures that any alert rule with a frequency lower than the specified minimum will trigger a warning and be evaluated at the administrator’s set interval instead. The change applies to both new and existing alert rules, meaning that if an administrator imposes a higher global interval after a rule's creation, the user will be warned of the override. The Grafana v6.6 stable release also includes improvements in various areas such as Alerting, CloudWatch, Explore, Loki, Graphite, and Stackdriver.

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