Converts an existing Tair DRAM-based classic instance to the first child instance of a distributed instance.
Operation description
You cannot directly create a distributed instance. If you require a distributed instance, you must call this operation to convert an existing instance to the first child instance of the distributed instance. After the instance is converted, the distributed instance is created. Before you call this operation, make sure that the following requirements are met:
- A DRAM-based instance of Enhanced Edition is used.
- If the existing instance is a cluster instance, the direct connection mode must be disabled for the instance. For more information, see Release a private endpoint.
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 |
|---|---|---|---|---|
| kvstore:CreateGlobalDistributeCache | update | *DBInstance acs:kvstore:{#regionId}:{#accountId}:instance/{#instanceId} |
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| SeedSubInstanceId | string | Yes | The ID of the existing instance. | r-bp1zxszhcgatnx**** |
| ResourceGroupId | string | No | The ID of the resource group. Note
You do not need to specify system parameters.
| rg-acfmyiu4ekp**** |
| EffectiveTime | string | No | The time when you want to restart the instance. Default value: Immediately. Valid values:
| Immediately |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "E681E498-5A0D-44F2-B1A7-912DC3******"
}Error codes
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|---|---|
| 2024-04-22 | The request parameters of the API has changed | View Change Details |
| 2023-07-25 | The request parameters of the API has changed | View Change Details |
| 2023-03-02 | The internal configuration of the API is changed, but the call is not affected | View Change Details |