tencent cloud

TDSQL Boundless

CreateDBInstances

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Last updated: 2026-05-27 16:17:53

1. API Description

Domain name for API request: tdmysql.intl.tencentcloudapi.com.

This API is used to batch create instances.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

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 Params. The value used for this API: CreateDBInstances.
Version Yes String Common Params. The value used for this API: 2021-11-22.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
Zone Yes String

Creating an Instance Region

VpcId Yes String

Character type vpcid

SubnetId Yes String

Character type subnetid

SpecCode Yes String

Purchase specification

Disk Yes Integer

Node disk capacity (unit: GB)

StorageNodeNum Yes Integer

Number of storage nodes

Replications Yes Integer

Number of node replicas for storage, up to 5, must be an odd number

InstanceCount Yes Integer

Instance count. Maximum is 10.

FullReplications No Integer

Number of replicas

CreateVersion No String

Create an instance version, using the current latest version by default

InstanceName No String

Instance name. The required length is 1-60. It can contain Chinese characters, English case, digits, hyphens (-), and underscores (_).

ResourceTags.N No Array of ResourceTag

Tag key-value pair array

InitParams.N No Array of InstanceParam

Initialize instance parameters. For example:
character_set_server (character set, defaults to utf8),
lower_case_table_names (table name case sensitivity, 0 - sensitive; 1 - insensitive, default is 0)

TimeUnit No String

Time unit, m: month

TimeSpan No Integer

Commodity duration size

StorageNodeCpu No Integer

CPU cores of the storage node

StorageNodeMem No Integer

Storage node memory size

PayMode No String

Payment mode. 0 means pay-as-you-go/postpaid, 1 means prepaid.

MCNum No Integer

Number of control nodes

Vport No Integer

Custom port

Zones.N No Array of String

Multi-AZ availability zone list

AutoVoucher No Boolean

Whether to use a coupon.

VoucherIds.N No Array of String

Coupon list

InstanceType No String

Instance Architecture Type, separate: decoupled architecture; hybrid: peer-to-peer architecture

StorageType No String

Disk Type, CLOUD_HSSD enhanced SSD, CLOUD_TCS local SSD disk

AZMode No Integer

AZ mode. 1: Single AZ, 2: Multi-AZ non-primary AZ, 3: Multi-AZ primary AZ

InstanceMode No String

Instance mode

TemplateId No String

Parameter template id

SQLMode No String

Compatible mode, enum:MySQL,HBase

AutoScaleConfig No AutoScalingConfig

ccu configuration of the svls instance

3. Output Parameters

Parameter Name Type Description
InstanceIds Array of String

Instance ID.

FlowId Integer

Task ID.

RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Creating an Instance

Input Example

POST / HTTP/1.1
Host: tdmysql.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateDBInstances
<Common request parameters>

{
    "Zone": "ap-chengdu-2",
    "VpcId": "vpc-jksnni36",
    "SubnetId": "subnet-dz7wfk4r",
    "SpecCode": "1c2g",
    "Disk": 30,
    "StorageNodeNum": 3,
    "Replications": 3,
    "InstanceCount": 1,
    "CreateVersion": "21.2.3",
    "InitParams": [
        {
            "Param": "character_set_server",
            "Value": "utf8mb4"
        }
    ],
    "StorageNodeCpu": 1,
    "StorageNodeMem": 2,
    "Zones": [
        "ap-chengdu-2"
    ],
    "InstanceType": "hybrid",
    "StorageType": "CLOUD_HSSD",
    "InstanceMode": "enhanced",
    "SQLMode": "MySQL"
}

Output Example

{
    "Response": {
        "FlowId": 4294998382,
        "InstanceIds": [
            "tdsql3-ac67c142"
        ],
        "RequestId": "b3e61005-1e6d-48a2-b5af-de6c4f19dd01"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
AuthFailure.CamAuthError CAM authentication error.
AuthFailure.CheckCamAuthError CAM authentication request parameter check failed.
AuthFailure.UnauthorizedOperation CAM authentication failure.
DryRunOperation.AddTagDryrunError Failed to bind the tag.
FailedOperation.CreateFlowError Failed to create the task.
FailedOperation.DBCreateInstanceError Failed to add instance data.
InvalidParameterValue.CheckDiskError Disk size validation error.
InvalidParameterValue.CheckInstanceVersionError Instance version validation error.
InvalidParameterValue.CheckNameError Name verification failed.
InvalidParameterValue.CheckSpecError Instance specification validation error.
InvalidParameterValue.CheckVpcError VPC validation error.
InvalidParameterValue.InvalidParameterValueError Parameter error
InvalidParameterValue.NodeReplicasInvalidError The number of instance replicas created does not meet specifications.
LimitExceeded.AddTagCountError The number of bound tags exceeds the limit.
LimitExceeded.OutOfInstanceCntLimitError The number of batch create instances exceeds the limit.
LimitExceeded.OutOfNodeReplicasLimitError The number of replicas exceeds the limit.
LimitExceeded.OutOfSpecLimitError The specification exceeds the limit.

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