E-MapReduce:NodeGroupConfig

The type of the node group. Valid values:

• MASTER
• CORE
• TASK

The name of the node group. The name can be up to 128 characters in length. The name of a node group must be unique in a cluster.

The billing method of the node group. If you do not configure this parameter, the billing method of the cluster is used. Valid values:

• PayAsYouGo
• Subscription

Default value: PayAsYouGo.

The configurations of the node group based on the subscription billing method. If you do not configure this parameter, the configurations of the cluster based on the subscription billing method are used.

The bidding policy for the preemptible instance. Valid values:

• NoSpot: The instance is created as a regular pay-as-you-go instance.
• SpotWithPriceLimit: The instance is a preemptible instance for which you specify the highest price that you want to pay for the instance.
• SpotAsPriceGo: The instance is a preemptible instance for which the market price is automatically used as the bid price. The highest market price is the pay-as-you-go price.

Default value: NoSpot.

The bid prices of the preemptible instances. The parameter takes effect only if the SpotStrategy parameter is set to SpotWithPriceLimit. Number of elements in the array: 0 to 100.

The vSwitch IDs. Number of elements in the array: 1 to 20.

Indicates whether a public IP address is assigned. Valid values:

• true
• false

Default value: false.

The additional security group IDs. Additional security groups are the security groups that are separately added to a node group. Number of elements in the array: 0 to 2.

The instance types of the nodes. Number of elements in the array: 1 to 100.

The number of nodes. Valid values: 1 to 1000.

The system disk.

The data disks. Only one disk type is supported. You can specify only one element in the array.

Indicates whether graceful shutdown is enabled for services in the node group. Valid values:

• true
• false

Default value: false.

Indicates whether preemptible instances are supplemented. If you set this parameter to true, the system attempts to create another instance in the scaling group when the system notifies that an existing preemptible instance is about to be reclaimed. Valid values:

• true
• false

Default value: false.

The scaling policy for the node. Valid values:

• COST_OPTIMIZED
• PRIORITY

Default value: PRIORITY.

The configurations of the cost optimization policy.

The deployment set policy. Valid values:

• NONE: No deployment sets are used.
• CLUSTER: Deployment sets at the cluster level are used.
• NODE_GROUP: Deployment sets at the node group level are used.

Default value: NONE.

The custom components.

The resource reservation policy of the node group. This parameter takes effects only for pay-as-you-go node groups.