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Cloud Load Balancer

BatchModifyTargetWeight

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最終更新日: 2026-06-17 17:21:48

1. API Description

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

The BatchModifyTargetWeight API is used to modify the forwarding weight of backend machines bound to a Cloud Load Balancer listener in batch. The resource limit is 500. This is an async API. After it returns a successful result, call DescribeTaskStatus API with the returned RequestID as input parameter to check whether this task is successful.
This API is supported by layer-4 and layer-7 CLB listeners but not by classic CLB.

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: BatchModifyTargetWeight.
Version Yes String Common Params. The value used for this API: 2023-04-17.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
LoadBalancerId Yes String CLB instance ID.
ModifyList.N Yes Array of RsWeightRule List of weights to be modified in batches.

3. Output Parameters

Parameter Name Type Description
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 Modifying RS Weights in Batches

This example shows you how to modify the weight of the RS ins-19404pl5 (port 110) bound to the forwarding rule loc-o8cnyw6c under the listener lbl-4b5hnc9a to 50 and modify the weight of the RS ins-19411tzv (port 80) bound to the forwarding rule loc-8c5pdrb8 under the listener lbl-20jjtaaw to 30 for the CLB instance (lb-dx98lwo0).

Input Example

https://clb.intl.tencentcloudapi.com/?Action=BatchModifyTargetWeight
&LoadBalancerId=lb-dx98lwo0
&ModifyList.0.ListenerId=lbl-4b5hnc9a
&ModifyList.0.LocationId=loc-o8cnyw6c
&ModifyList.0.Targets.0.InstanceId=ins-19404pl5
&ModifyList.0.Targets.0.Port=110
&ModifyList.0.Targets.0.Weight=50
&ModifyList.1.ListenerId=lbl-20jjtaaw
&ModifyList.1.LocationId=loc-8c5pdrb8
&ModifyList.1.Targets.0.InstanceId=ins-19411tzv
&ModifyList.1.Targets.0.Port=80
&ModifyList.1.Targets.0.Weight=30
&<Common request parameters>

Output Example

{
    "Response": {
        "RequestId": "83329908-a282-4f9f-8ab-031a3025b377"
    }
}

Example2 Modifying Weights of Servers Bound to Layer-4 and Layer-7 Listeners in Batches

This example shows you how to modify the weights of servers bound to both layer-4 and layer-7 listeners of a CLB instance.

Input Example

https://clb.intl.tencentcloudapi.com/?Action=BatchModifyTargetWeight
&LoadBalancerId=lb-1kkno9qf
&ModifyList.0.ListenerId=lbl-mhtffs09
&ModifyList.0.Targets.0.InstanceId=ins-kjp6cb2f
&ModifyList.0.Targets.0.Port=79
&ModifyList.0.Targets.0.Weight=50
&ModifyList.1.ListenerId=lbl-661zpn3b
&ModifyList.1.LocationId=loc-78p1r0vb
&ModifyList.1.Targets.0.EniIp=10.202.0.96
&ModifyList.1.Targets.0.Port=80
&ModifyList.1.Targets.0.Weight=30
&<Common request parameters>

Output Example

{
    "Response": {
        "RequestId": "38bab2ce-616d-412c-a4b0-36110d5b17a3"
    }
}

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
FailedOperation Operation failed.
InternalError Internal error.
InvalidParameter Parameter error.
InvalidParameter.FormatError Incorrect parameter format.
InvalidParameterValue Parameter value error.
InvalidParameterValue.Length Invalid parameter length.
UnauthorizedOperation Unauthorized operation.

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