Update the backend instance properties of the traditional load balancer - UpdateBackendAttribute

Overview

Update the properties of CLB backend resource instances (service nodes)

ℹ️ The service node for message forwarding does not currently support modification of Port; BackendId corresponds to the BackendId returned by AllocateBackend or the BackendId in the ULBBackendSet structure returned by DescribeULB/DescribeVServer, which is the backend instance Id of the traditional load balancer.

Definition

Public Parameters

Parameter Name	Type	Description Information	Required
Action	string	Corresponding API command name, the current API is `UpdateBackendAttribute`.	Yes
PublicKey	string	The user's public key can be obtained from Console (opens in a new tab)	Yes
Signature	string	User signature generated based on public key and API command, see Signature Algorithm	Yes

Request Parameters

Parameter Name	Type	Description Information	Required
Region	string	Region. See List of Regions and Availability Zones	Yes
ProjectId	string	Project ID. If not filled in, the default project is used, sub-accounts must be filled in. Please refer to the GetProjectList interface.	Yes
ULBId	string	Traditional Load Balancer Resource ID	Yes
BackendId	string	ID of the backend resource instance (CLB backend ID, not the resource's own ID)	Yes
Port	int	Backend resource service port, value range [1-65535]	No
Weight	int	The weight of the added backend RS (effective under the weighted round-robin algorithm), the value range is [1-100], the default is 1.	No
Enabled	int	Backend Instance Status Switch	No
IsBackup	int	Is it a backup? 0: Primary rs 1: Backup rs Default is 0	No

Response Field

Field Name	Type	Description Information	Required
RetCode	int	Return status code. If it is 0, it means successful return. If it is not 0, it means failure.	Yes
Action	string	Operation command name.	Yes
Message	string	Returns an error message, providing detailed description when `RetCode` is non-zero.	No

Example

Request Example

https://api.surfercloud.com/?Action=UpdateBackendAttribute
&Region=cn-bj2
&ProjectId=project-XXXX
&ULBId=ulb-XXXX
&BackendId=backend-XXXX
&Port=8080
&Enabled=0
&Weight=2
&IsBackup=0

Response Example

{
  "Action": "UpdateBackendAttributeResponse",
  "BackendSet": [
    {
      "BackendId": "VrjEOOfp",
      "SubMessage": "fHpUyKqK",
      "SubRetCode": 1
    }
  ],
  "RetCode": 0
}

UpdateVServerAttribute UpdateBackendBatch