Tiered Severity Support for Metric Alerts

Users can now configure multiple severity thresholds (e.g., INFORMATION, WARNING, CRITICAL) within a single metric alert rule for OPEN state.

The system dynamically evaluates data against these levels and utilizes alert suppression logic: if a CRITICAL threshold is met, the WARNING alert is automatically silenced to prevent redundant notifications. When a metric escalates from Warning to Critical, a new notification is triggered, and the attributes section of the notification payload will dynamically include the current severity level.

Example

{
    "state": "OPEN",
    "threshold": [
        {
            "value": 90,
            "severity": "Critical"
        },
        {
            "value": 80,
            "severity": "Warning"
        }
    ],
    "agg_column": "value",
    "agg_func": "avg",
    "attributes": {
        "custom_message": "Host {{device}}  breached the threshold"
    },
    "notification": "single_channel_profile"
}