To prevent an excessive number of email notifications from being sent when alerts are triggered, StorageGRID attempts to group multiple alerts in the same notification.
- Each alert notification applies only to alerts that have the same name. If two alerts with different names are triggered at the same time, two alert notifications are sent.
- For a specific alert on a specific node, if the thresholds are reached for more than one severity, a notification is sent only for the most severe alert. That is, if alert thresholds are reached for the minor, major, and critical severities, a notification is sent only for the critical alert.
- The first time an alert is triggered, StorageGRID waits 2 minutes before sending a notification. If other alerts with the same name are triggered during that time, StorageGRID groups all of the alerts in the initial notification.
- If an additional alert with the same name is triggered, StorageGRID waits 10 minutes before sending a new notification. The new notification reports all active alerts, even if they were reported previously.
- StorageGRID continues to send notifications once every 7 days until all instances of the alert are resolved or the alert rule is silenced.