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Changing DB Instance Specifications

Updated at: Apr 22, 2020 GMT+08:00

Function

This API is used to change DB instance specifications.

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

  • Example

    https://rds.ap-southeast-1.myhuaweicloud.com/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 RDS, mysql indicates the DB engine, and m1.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.

  • Request example
    {
    	"resize_flavor": {
    		"spec_code": "rds.pg.c2.medium"
    	}
    }

Response

  • 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

For details, see Status Codes.

Error Code

For details, see Error Codes.

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