IncreaseNodes - E-MapReduce - Alibaba Cloud Documentation Center

Scale out the node group.

Debugging

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Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
emr:IncreaseNodes	update	All Resources ``	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The ID of the region in which you want to create the instance.	cn-hangzhou
ClusterId	string	Yes	The ID of the cluster.	c-b933c5aac8fe****
NodeGroupId	string	Yes	The ID of the node group. The target node group to which you want to scale out the cluster.	ng-869471354ecd****
IncreaseNodeCount	integer	Yes	The number of nodes. The number of incremental nodes for this scale-out. Valid values: 1 to 500.	3
AutoPayOrder	boolean	No	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	false
AutoRenew	boolean	No	Specifies whether to enable auto-renewal for nodes. Valid values: true false (default value)	false
PaymentDuration	integer	No	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.	12
PaymentDurationUnit	string	No	The unit of the subscription duration. Valid values: Month	Month
ApplicationConfigs	array	No	The application configurations. You can specify a maximum of 1,000 items.
ApplicationConfig	ApplicationConfig	No	The application configuration.
MinIncreaseNodeCount	integer	No	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`.

Response parameters

Parameter	Type	Description	Example
	object	The returned data.
OperationId	string	The ID of the operation.	op-13c37a77c505****
RequestId	string	The ID of the request.	DD6B1B2A-5837-5237-ABE4-FF0C8944****

Examples

Sample success responses

JSONformat

{
  "OperationId": "op-13c37a77c505****",
  "RequestId": "DD6B1B2A-5837-5237-ABE4-FF0C8944****"
}

Error codes

HTTP status code	Error code	Error message
400	OperationDenied	The operation is invalid. %s
400	OutOfStock	The requested resource is sold out in the specified zone, try other types of resources or other regions and zones.
400	QuotaExceeded	Request fail due to quota exceed. %s
400	AccountException	Account exception. %s
400	ConcurrentModification	The request on %s failed due to multiple requests to change this object were submitted simultaneously. Wait a few minutes and try again.
400	ConflictParameters	Parameters that must not be used together. %s
400	IncompleteSignature	The request signature is invalid.
400	InvalidAction	The action %s requested is invalid.
400	InvalidParameter	The specified parameter %s is not valid.
400	InvalidParameterValue	The input parameter %s is invalid or out of range.
400	MissingAction	The action %s requested is missing.
400	MissingParameter	The input parameter %s that is mandatory for processing this request is not supplied.
400	NotAuthorized	You do not have permission to perform this action. %s
400	ThrottlingException	The request was denied due to request throttling. %s
404	ResourceNotFound	The resource not found by %s.
500	InternalError	The request processing has failed due to some unknown error, exception or failure.
503	ServiceFailure	The request has failed due to a temporary failure of %s service.
503	ServiceUnavailable	The request has failed due to a temporary failure of the server.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-06-18	The Error code has changed. The request parameters of the API has changed	View Change Details
2024-02-23	The Error code has changed. The request parameters of the API has changed	View Change Details
2021-10-12	The Error code has changed	View Change Details