DeleteDBNodes-阿里云帮助中心

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

polardb:DeleteDBNodes

delete

*dbcluster

acs:polardb:{#regionId}:{#accountId}:dbcluster/{#dbclusterId}

None

Request parameters

Parameter	Type	Required	Description	Example
DBClusterId	string	Yes	The cluster ID.	pc-**************
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. The client generates this value, which must be unique for each request. The token can contain only ASCII characters and cannot exceed 64 characters in length. The token is case-sensitive.	6000170000591aed949d0f54a343f1a42***********
DBNodeType	string	No	The node type. Valid values: RO STANDBY DLNode Valid values: DLNode : AI node STANDBY : standby node RO : read-only node	RO
DBNodeId	array	Yes	The IDs of the nodes to be deleted. Note Call the DescribeDBClusters operation to query the details of all clusters in your account, including node IDs.	pi-************
	string	No	The ID of the node to delete. A cluster must retain at least one primary node and one read-only node. Note Only PolarDB for MySQL clusters allow you to delete multiple read-only nodes at once.	pi-****************
CloudProvider	string	No	The service provider of the node.	ENS

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	6566B2E6-3157-4B57-A693-AFB751******
DBClusterId	string	The database cluster ID.	pc-**************
OrderId	string	The order ID.	2035638*******

Examples

Success response

JSON format

{
  "RequestId": "6566B2E6-3157-4B57-A693-AFB751******",
  "DBClusterId": "pc-**************",
  "OrderId": "2035638*******"
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidDBNodeNum.Malformed	The number of parameter DBNode.N is not valid.	The specified number of database nodes is invalid.
400	OperationDenied.DeleteDBNodesWithStrictConsistencyOn	3AZ cluster does not allow delete db nodes.	Nodes cannot be deleted for multi-zone clusters.
400	InvalidDBNode.Malformed	The specified parameter DBNode.N is not valid.	The specified DBNode.N parameter is invalid.
403	OperationDenied.DBNodeRole	The operation is not permitted due to the role of node.	This operation is not supported by the node role.
404	InvalidDBClusterId.NotFound	The DBClusterId provided does not exist in our records.	The specified DBClusterId parameter does not exist in the current record.
404	InvalidDBClusterId.Malformed	The specified parameter DBClusterId is not valid.	The specified DBClusterId parameter is invalid.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.