Changing DB Instance Specifications¶
Function¶
This API is used to change DB instance specifications.
Before calling an API, you need to understand the API in Authentication.
Before calling this API, obtain the required region and endpoint.
Note
Services will be interrupted for 5 to 10 minutes when you change DB instance specifications. Exercise caution when performing this operation.
Constraints¶
The new DB instance specifications must be different from the original DB instance specifications.
The instance class can be modified only for DB instances whose status is Available.
The specifications of a DB instance can be changed only to the specifications of the same DB instance type. (For example, the specifications of a single DB instance cannot be changed to those of primary/standby DB instances.)
URI¶
URI format
POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/action
Parameter description
¶ Name
Mandatory
Description
project_id
Yes
Specifies the project ID of a tenant in a region.
For details about how to obtain the project ID, see Obtaining a Project ID.
instance_id
Yes
Specifies the DB instance ID.
Request¶
Parameter description
¶ Name
Mandatory
Type
Description
spec_code
Yes
String
Specifies the resource specification code. Use rds.mysql.n1.xlarge as an example. rds indicates RDS, mysql indicates the DB engine, and n1.xlarge indicates the performance specification (large-memory). The parameter containing rr indicates the read replica specifications. The parameter not containing rr indicates the single or primary/standby DB instance specifications.
Example
Request example
{ "resize_flavor": { "spec_code": "rds.pg.c2.medium" } }
Response¶
Normal response
¶ Name
Type
Description
job_id
String
Indicates the task ID.
Example normal response
{ "job_id": "2b414788a6004883a02390e2eb0ea227" }
Abnormal Response
For details, see Abnormal Request Results.
Status Code¶
Normal
202
Abnormal
For details, see Status Codes.
Error Code¶
For details, see Error Codes.