Function

This API is used to change the node class of a DDM instance.

Constraints

The node class can be changed only when the corresponding DDM instance is normal.
The new node class cannot be the same as the original one.
Node classes of c6s series cannot be changed to those classes of c6 series.

URI

PUT /v3/{project_id}/instances/{instance_id}/flavor

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region
instance_id	Yes	String	DDM instance ID

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
x-auth-token	Yes	String	User token. It can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
spec_code	Yes	String	Resource specification code of the new node class
group_id	No	String	This parameter is not required if the instance has only one node group. Each instance has one node group by default. If you need to create multiple node groups, set this parameter to the ID of the group whose node class you want to change.
is_auto_pay	No	Boolean	The function has not been supported, and this field is reserved.

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
job_id	String	ID of the task for changing node class.

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
errCode	String	Service error code
externalMessage	String	Error message

Status code: 500

**Table 6** Response body parameters
Parameter	Type	Description
errCode	String	Service error code
externalMessage	String	Error message

Example Request

PUT https://{endpoint}/v3/{project_id}/instances/{instance_id}/flavor

{
  "spec_code" : "ddm.8xlarge.2",
  "group_id" : "3e5a9063d3b84729b0a3310fad3a0942gr09"
  }

Example Response

Status code: 200

{
  "job_id" : "2x414788a5112333a02390e2eb0ea227"
}

Status code: 400

bad request

{
  "externalMessage" : "Parameter error.",
  "errCode" : "DBS.280001"
}

Status code: 500

server error

{
  "externalMessage" : "Server failure.",
  "errCode" : "DBS.200412"
}

Status Codes

Status Code	Description
200	OK
400	bad request
500	server error

Error Codes

For details, see Error Codes.

Changing the Node Class of a DDM Instance