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 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 https://{Endpoint}/v3/{project_id}/instances/{instance_id}/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.

    For details, see spec_code in Table 3 in section Querying Database Specifications.

    • Request example

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

      MySQL:

      {
          "resize_flavor": {
              "spec_code": "rds.mysql.s3.xlarge.2"
      
          }
      }
      

      PostgreSQL:

      {
          "resize_flavor": {
              "spec_code": "rds.pg.s3.xlarge.2.ha"
      
          }
      }
      

      Microsoft SQL Server:

      {
          "resize_flavor": {
              "spec_code": "rds.mssql.s3.xlarge"
      
          }
      }
      

Response

  • Pay-per-use

    • Normal response

      Table 4 Parameter description

      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

Error Code

For details, see Error Codes.