ModifyTargetWeight

最后更新时间：2025-11-25 10:11:31

ModifyTargetWeight

最后更新时间： 2025-11-25 10:11:31

1. API Description

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

This API is used to modify the forwarding weight of backend service bound to Cloud Load Balancer.
This is an asynchronous API. After it returns the result successfully, you can call the DescribeTaskStatus API with the returned RequestId as an input parameter to query whether the task is successful.

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

We recommend you to use API Explorer

Try it

API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

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: ModifyTargetWeight.
Version	Yes	String	Common Params. The value used for this API: 2018-03-17.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product.
LoadBalancerId	Yes	String	CLB instance ID
ListenerId	Yes	String	CLB listener ID
Targets.N	Yes	Array of Target	List of real servers for which to modify the weights
LocationId	No	String	Forwarding rule ID. When binding a real server to a layer-7 forwarding rule, you must provide either this parameter or Domain+Url.
Domain	No	String	Target rule domain name. This parameter does not take effect if LocationId is specified.
Url	No	String	Target rule URL. This parameter does not take effect if LocationId is specified.
Weight	No	Integer	New forwarding weight of a real server. Value range: 0-100. Default value: 10. If the Targets.Weight parameter is set, this parameter will not take effect.

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 the weight of the real server bound to a layer-4 listener

This example shows you how to change the weight of the real server ins-dm4xtz0i (bound port: 334) bound to the listener lbl-d1ubsydq to 8.

Input Example

https://clb.intl.tencentcloudapi.com/?Action=ModifyTargetWeight
&LoadBalancerId=lb-cuxw2rm0
&ListenerId=lbl-d1ubsydq
&Targets.0.InstanceId=ins-dm4xtz0i
&Targets.0.Port=334
&Weight=8
&<Common request parameters>

Output Example

{
    "Response": {
        "RequestId": "85c7b3e8-7fd8-4c62-8b3b-7ba52d7a1dca"
    }
}

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

Tencent Cloud CLI 3.0

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.
FailedOperation.ResourceInOperating	The specified resource is currently being operated. Please try again later.
InternalError	Internal error.
InvalidParameter	Parameter error.
InvalidParameter.FormatError	Wrong parameter format.
InvalidParameterValue	Incorrect parameter value.
InvalidParameterValue.Duplicate	Duplicate parameter value.
InvalidParameterValue.Length	Wrong parameter length.
UnauthorizedOperation	Unauthorized operation.

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