Enables or disables the hot standby node in a cluster.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| polardb:ModifyDBNodeHotReplicaMode | Write |
|
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| DBClusterId | string | Yes | The ID of the cluster. Note
You can call the DescribeDBClusters operation to query the details of the clusters that belong to your Alibaba Cloud account, such as cluster IDs.
| pc-2vc327c2a14a3u858 |
| DBNodeId | string | Yes | The ID of the node in the cluster. | pi-2ze28275h9x5r4wt1 |
| HotReplicaMode | string | Yes | Specifies whether to enable the hot standby feature. Valid values:
| ON |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "9F4DDFBF-205C-5A3E-8DC2-C60F3E3FDC38",
"DBClusterId": "pc-2vc327c2a14a3u858",
"OrderId": "2148126708*****"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 404 | InvalidDBInstanceClass.NotFound | rw class code must be equal with hot replica | The specification of the secondary node must be the same as that of the primary node. |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation | ||||||
|---|---|---|---|---|---|---|---|---|
| 2023-09-12 | The Error code has changed | see changesets | ||||||
| ||||||||
| 2022-01-13 | Add Operation | see changesets |