Kener Documentation

Group monitors aggregate member monitor status and latency into one monitor.

Minimum setup

Requirements from current validation:

at least 2 member monitors
members must be active, non-group monitors
weights must sum to approximately 1 (tolerance 0.01)
executionDelay must be >= 1000 ms
latencyCalculation in AVG | MAX | MIN

Status scoring model

Member statuses are scored as:

UP = 0
DEGRADED = 1
DOWN = 2
MAINTENANCE = 3

Weighted score:

Σ(member.weight * statusScore)

Mapped group status:

< 1 → UP
>= 1 and < 2 → DEGRADED
>= 2 and < 3 → DOWN
>= 3 → MAINTENANCE

Latency aggregation

Group latency uses selected mode:

AVG: average member latency
MAX: slowest member latency
MIN: fastest member latency

Configuration fields

Field	Type	Default	Notes
`monitors`	`Array<{tag, weight}>`	`[]`	Required, min 2
`executionDelay`	`number`	`1000`	Must be >= 1000
`latencyCalculation`	`AVG\|MAX\|MIN`	`AVG`

Example

{
    "type": "GROUP",
    "type_data": {
        "monitors": [
            { "tag": "api", "weight": 0.6 },
            { "tag": "db", "weight": 0.3 },
            { "tag": "cache", "weight": 0.1 }
        ],
        "executionDelay": 1500,
        "latencyCalculation": "AVG"
    }
}

Troubleshooting