Domain name for API request: cdb.tencentcloudapi.com.
This API is used to query the minimum specification of a read-only instance that can be purchased or upgraded to.
A maximum of 20 requests can be initiated per second for this API.
Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example: cdb.ap-shanghai-fsi.tencentcloudapi.com
The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.
| Parameter Name | Required | Type | Description |
|---|---|---|---|
| Action | Yes | String | Common parameter. The value used for this API: DescribeRoMinScale. |
| Version | Yes | String | Common parameter. The value used for this API: 2017-03-20. |
| Region | Yes | String | Common parameter. For more information, please see the list of regions supported by the product. |
| RoInstanceId | No | String | Read-only instance ID in the format of "cdbro-c1nl9rpv". Its value is the same as the instance ID in the TencentDB Console. This parameter and the MasterInstanceId parameter cannot both be empty. |
| MasterInstanceId | No | String | Primary instance ID in the format of "cdbro-c1nl9rpv". Its value is the same as the instance ID in the TencentDB Console. This parameter and the RoInstanceId parameter cannot both be empty. Note: when the parameters are passed in with RoInstanceId, the return value refers to the minimum specification to which a read-only instance can be upgraded; when the parameters are passed in with MasterInstanceId but without RoInstanceId, the return value refers to the minimum purchasable specification for a read-only instance. |
| Parameter Name | Type | Description |
|---|---|---|
| Memory | Integer | Memory size in MB. |
| Volume | Integer | Disk size in GB. |
| RequestId | String | The unique request ID, which is returned for each request. RequestId is required for locating a problem. |
https://cdb.tencentcloudapi.com/?Action=DescribeRoMinScale
&RoInstanceId=cdbro-831kwfnh
&MasterInstanceId=cdb-r66ityd5
&<Common request parameters>
{
"Response": {
"RequestId": "6EF60BEC-0242-43AF-BB20-270359FB54A7",
"Volume": 50,
"Memory": 1000
}
}
TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.
The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.
| Error Code | Description |
|---|---|
| InternalError.DatabaseAccessError | Internal database error. |
| InvalidParameter | Parameter error. |
| InvalidParameter.InstanceNotFound | The instance does not exist. |
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