tencent cloud



Last updated: 2022-08-17 15:34:14

1. API Description

Domain name for API request: as.tencentcloudapi.com.

This API is used to modify the target rule attributes of the CLB in the scaling group.

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: ModifyLoadBalancerTargetAttributes.
Version Yes String Common Params. The value used for this API: 2018-04-19.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
AutoScalingGroupId Yes String Scaling group ID
ForwardLoadBalancers.N Yes Array of ForwardLoadBalancer List of application CLBs to modify. Up to 50 CLBs allowed.

3. Output Parameters

Parameter Name Type Description
ActivityId String Scaling activity ID
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Modifying the target rule attribute of the application CLB lb-23aejgcv (listener: lbl-ncw704sn, forwarding rule ID: loc-l3hmaev9), changing the port number to 8080 and the weight to 20

Input Example

Host: as.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ModifyLoadBalancerTargetAttributes
<Common request parameters>

    "AutoScalingGroupId": "asg-12wjuh0s",
    "ForwardLoadBalancers": [
            "TargetAttributes": [
                    "Port": "8080",
                    "Weight": "20"
            "Region": "ap-guangzhou",
            "LocationId": "loc-l3hmaev9",
            "ListenerId": "lbl-ncw704sn",
            "LoadBalancerId": "lb-23aejgcv"

Output Example

    "Response": {
        "ActivityId": "asa-9asddelc",
        "RequestId": "8d78668d-61eb-456d-855b-f34f91371089"

5. Developer Resources


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.NoActivityToGenerate No scaling activity is generated.
InternalError.RequestError An internal request error occurred.
InvalidParameter.ActionNotFound Invalid Action request.
InvalidParameter.Conflict Multiple parameters specified conflict and cannot co-exist.
InvalidParameter.InScenario The parameter is invalid in a specific scenario.
InvalidParameter.LoadBalancerNotInAutoScalingGroup The specified CLB does not exist in the current scaling group.
InvalidParameterValue.ClassicLb A classic CLB should be specified.
InvalidParameterValue.ForwardLb A CLB should be specified.
InvalidParameterValue.InvalidAutoScalingGroupId Invalid scaling group ID.
InvalidParameterValue.InvalidClbRegion The regions specified for CLB is invalid.
InvalidParameterValue.TargetPortDuplicated The backend port of the CLB layer-4 listener already exists.
LimitExceeded.AfterAttachLbLimitExceeded Binding with the specified CLBs will make the total number of bound CLBs exceeds the upper limit.
MissingParameter.InScenario A parameter is missing in a specific scenario.
ResourceNotFound.AutoScalingGroupNotFound The scaling group does not exist.
ResourceNotFound.ListenerNotFound The specified listener does not exist.
ResourceNotFound.LoadBalancerNotFound The specified load balancer was not found.
ResourceNotFound.LoadBalancerNotInAutoScalingGroup The specified CLB does not exist in the current scaling group.
ResourceNotFound.LocationNotFound The specified location does not exist.
ResourceUnavailable.AutoScalingGroupInActivity The auto scaling group is active.
ResourceUnavailable.LbBackendRegionInconsistent The backend region of the CLB is not the same as the one for AS service.
ResourceUnavailable.LbProjectInconsistent The CLBs are not in the same project.
ResourceUnavailable.LbVpcInconsistent The CLB and scaling group should reside in the same VPC.
ResourceUnavailable.LoadBalancerInOperation CLB is active in the scaling group.
Contact Us

Contact our sales team or business advisors to help your business.

Technical Support

Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

7x24 Phone Support