E-MapReduce:ScalingRule

The name of the rule. This parameter is required and cannot be an empty string.

The type of the scaling rule. This parameter is required. Valid values:

• TIME_TRIGGER: time-based scaling.

• METRICS_TRIGGER: load-based scaling.

The type of the scaling activity. This parameter is required. Valid values:

• SCALE_OUT: scale-out.

• SCALE_IN: scale-in.

The adjustment method of the scaling rule. This parameter applies to simple scaling rules and step scaling rules. Valid values:

• CHANGE_IN_CAPACITY: Changes the capacity by a specified number of instances.

• EXACT_CAPACITY: Adjusts the capacity to a specified number of instances.

The adjustment value. This parameter is required and must be a positive integer. It specifies the number of instances to add for a scale-out activity or remove for a scale-in activity.

The configurations for time-based scaling.

The configurations for load-based scaling.

The minimum number of instances to add during a scale-out activity.