doc-exports/docs/rds/api-ref/en-us_topic_0056890050.html

Changing DB Instance Specifications

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.

URI

• URI format

  PATH: /v1.0/{project_id}/instances/{instanceId}/action

  Method: POST

• Parameter description

  Table 1 Parameter description

  Name	Mandatory	Description
  project_id	Yes	Specifies the project ID of a tenant in a region.
  instanceId	Yes	Specifies the DB instance ID.

• Restrictions
  1. The new specifications cannot be the same as the original specifications.
  2. The instance class can be modified only for DB instances whose status is Available.
  3. Currently, only the DB engines MySQL and PostgreSQL are supported by the API.

Request

• Parameter description

  Table 2 Parameter description

  Name	Type	Description
  resize	Dictionary data structure. For details, see Table 3.	Specifies the information about the returned parameter flavorRef.

  Table 3 resize field data structure description

  Name	Type	Description
  flavorRef	String	Specifies the specification ID (flavors.str_id in the response message in Obtaining All DB Instance Specifications).

• Request example

  { 
      "resize":{ 
          "flavorRef":"0d922098-553c-4123-80df-e627a1d41a0d" 
      } 
  }

Normal Response

None

Abnormal Response

For details, see Abnormal Request Results.

Parent topic: DB Instance Management