Changes the node specifications of a specified PolarDB cluster.
Debugging
Request parameters
Parameter | Position | Type | Required | Example | Description |
---|---|---|---|---|---|
Action | Query | String | No | ModifyDBNodeClass |
The operation that you want to perform. Set the value to ModifyDBNodeClass. |
DBClusterId | Query | String | Yes | pc-************* |
The ID of the PolarDB cluster. |
DBNodeTargetClass | Query | String | Yes | polar.mysql.x4.large |
For more information about the node specifications, see Specifications and pricing. |
ModifyType | Query | String | Yes | Upgrade |
The type of the change. Valid values:
|
ClientToken | Query | String | No | 6000170000591aed949d0f54a343f1a4233c1e7d1c5c****** |
The client token that is used to ensure the idempotency of requests. If an API operation is idempotent, the API operation returns the same result for identical requests. You can use the client to generate the value. Make sure that the value is unique for different requests. The token is case-sensitive. The token can contain only ASCII characters and cannot exceed 64 characters in length. |
Response parameters
Parameter | Type | Example | Description |
---|---|---|---|
DBClusterId | String | pc-************* |
The ID of the PolarDB cluster. |
OrderId | String | 2035629****** |
The ID of the order. |
RequestId | String | 685F028C-4FCD-407D-A559-072D63****** |
The ID of the request. |
Examples
Sample requests
http(s)://polardb.aliyuncs.com/? Action=ModifyDBNodeClass
&DBClusterId=pc-*************
&DBNodeTargetClass=polar.mysql.x4.large
&ModifyType=Upgrade
&<Common request parameters>
Sample success responses
XML
format
<ModifyDBNodeClassResponse>
<RequestId>685F028C-4FCD-407D-A559-072D6378C4C3</RequestId>
<OrderId>2035629******</OrderId>
<DBClusterId>pc-**************</DBClusterId>
</ModifyDBNodeClassResponse>
JSON
format
{
"RequestId": "685F028C-4FCD-407D-A559-072D6378C4C3",
"OrderId": "2035629******",
"DBClusterId": "pc-**************"
}
Error codes
For a list of error codes, visit the API Error Center.