E-MapReduce：IncreaseNodes

The ID of the region in which you want to create the instance.

The ID of the cluster.

The ID of the node group. The target node group to which you want to scale out the cluster.

The number of nodes. The number of incremental nodes for this scale-out. Valid values: 1 to 500.

Indicates whether to automatically pay for the orders involved in the scale-out operation. This parameter takes effect only when the PaymentType parameter is set to Subscription. Valid values:

• true: automatically pays for the order involved in this operation.
• false: does not automatically pay for the orders involved in this operation.

Default value: false

Specifies whether to enable auto-renewal for nodes. Valid values:

• true
• false (default value)

The subscription duration. Valid values when the PaymentDurationUnit value is Month: 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 24, 36, 48, and 60.

The unit of the subscription duration. Valid values:

• Month

The application configurations. You can specify a maximum of 1,000 items.

The minimum number of nodes that can be added. Valid values: 1 to 500.

• If you configure this parameter, and the number of available Elastic Compute Service (ECS) instances is less than the value of the IncreaseNodeCount parameter, the system tries to add nodes based on the number specified by the MinIncreaseNodeCount parameter. If the minimum number of nodes are added, the scale-out status is PARTIAL_COMPLETED.
• If you do not configure this parameter, and the number of available ECS instances is less than the value of the IncreaseNodeCount parameter, the scale-out process fails. The scale-out status is FAILED.