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.

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 specifications can be modified only for DB instances in the Available status.
• 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 /v3/{project_id}/instances/{instance_id}/action

• Example

  https://{Endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/action

• Parameter description

  Table 1 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

  Table 2 Parameter description

  Name	Mandatory	Type	Description
  resize_flavor	Yes	Object	For details, see Table 3.

  Table 3 resize_flavor field data structure description

  Name	Mandatory	Type	Description
  spec_code	Yes	String	Specifies the resource specification code. Use rds.mysql.m1.xlarge as an example. rds indicates the RDS product, mysql indicates the DB engine, and m1.xlarge indicates the high memory performance specifications. The parameter containing rr indicates the read replica specifications. The parameter not containing rr indicates the single or primary/standby DB instance specifications.

  • Request example

    MySQL:

    {
    	"resize_flavor": {
    		"spec_code": "rds.mysql.m1.xlarge"
              
    	}
    }

    PostgreSQL:

    {
    	"resize_flavor": {
    		"spec_code": "rds.pg.c2.medium.ha"
              
    	}
    }

Response

• Normal response

  Table 4 Parameter description

  Name	Type	Description
  job_id	String	Indicates the job ID.

• Example normal response

  {
  	"job_id": "2b414788a6004883a02390e2eb0ea227"
  }

• Abnormal response

  For details, see Abnormal Request Results.

Status Code

• Normal

  200

• Abnormal

  For details, see Status Codes.

Error Code

For details, see Error Codes.