| Parameter | Type | Description | Example |
|---|---|---|---|
| object | The configurations of the scaling rule. | ||
| RuleName | string | The name of the scaling rule. This parameter is required and cannot be an empty string. | scalingByYarnMemory |
| TriggerType | string | The trigger mode of the scaling rule. This parameter is required. Valid values:
| TIME_TRIGGER |
| ActivityType | string | The scaling type. This parameter is required. Valid values:
| SCALE_IN |
| AdjustmentValue | integer | The adjustment value of the scaling rule. This parameter is required. The parameter value must be a positive integer, which indicates the number of instances that you want to add or remove. | 200 |
| TimeTrigger | TimeTrigger | The description of time-based scaling. | |
| MetricsTrigger | MetricsTrigger | The description of load-based scaling. |