1. API Description

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

The BatchModifyTargetWeight API is used to batch modify the forwarding weight of backend machines bound to a CLB listener. The maximum resource quantity for batch modification is 500. This is an asynchronous API. After it returns a successful result, you need to call the DescribeTaskStatus API with the returned RequestID as input parameter to check whether this task is successful. This API supports both layer-4 and layer-7 CLB listeners but is unsupported for classic CLB.

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

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.

3. Output Parameters

4. Example

Example1 Modifying the Weight of Backend Services in Batches

For the Cloud Load Balancer instance (lb-dx98lwo0), change the weight of the bound backend service ins-19404pl5 (port 110) under forwarding rule loc-o8cnyw6c in listener lbl-4b5hnc9a to 50, and modify the weight of the bound backend service ins-19411tzv (port 80) under forwarding rule loc-8c5pdrb8 in listener lbl-20jjtaaw to 30.

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 the Server Weights of Layer-4 and Layer-7 Listeners in Batches

This example shows you how to modify the server weights bound to both layer-4 and layer-7 (HTTP/HTTPS) listeners under a Cloud Load Balancer at the same time.

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.

• Tencent Cloud SDK 3.0 for Python
• Tencent Cloud SDK 3.0 for Java
• Tencent Cloud SDK 3.0 for PHP
• Tencent Cloud SDK 3.0 for Go
• Tencent Cloud SDK 3.0 for Node.js
• Tencent Cloud SDK 3.0 for .NET
• Tencent Cloud SDK 3.0 for C++

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.