Removes backend servers.
Operation description
- You can call this operation up to 100 times per second.
- You can call this operation up to 10 times per second per account.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action
policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resources
is used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
Operation | Access level | Resource type | Condition key | Associated operation |
---|---|---|---|---|
ens:RemoveBackendServers | update | *All Resources * |
| none |
Request parameters
Parameter | Type | Required | Description | Example |
---|---|---|---|---|
LoadBalancerId | string | Yes | The ID of the Edge Load Balancer (ELB) instance. | lb-5ovkn1piwqmoqrfjdyhq4**** |
BackendServers | array<object> | Yes | The list of backend servers that you want to remove. You can remove up to 20 backend servers at a time. | |
object | Yes | The list of backend servers that you want to remove. You can remove up to 20 backend servers at a time. | ||
ServerId | string | Yes | The instance ID of the backend server. | i-5uf68ts0fqexe1a4n**** |
Weight | integer | No | The weight of the backend server. | 100 |
Type | string | No | The type of backend server. Valid values:
| ens |
Ip | string | No | The IP address of the backend server. | 192.XXX.X.X |
Port | integer | No | The backend port that is used by the Edge Load Balancer (ELB) instance. | 0 |
Response parameters
Examples
Sample success responses
JSON
format
{
"RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E",
"BackendServers": {
"BackendServer": [
{
"ServerId": "i-5vb5h5njxiuhn48a****",
"Weight": 50,
"Type": "ens",
"Ip": "192.1XX.X.X",
"Port": 0
}
]
}
}
Error codes
HTTP status code | Error code | Error message | Description |
---|---|---|---|
400 | ens.interface.error | An error occurred while call the API. | - |
400 | LoadBalancerNotFound | The input parameter LoadBalancerId that is not found. | The load balancing instance does not exist. |
400 | IncorrectInstanceStatus | The current status of the resource does not support this operation. | The current operation is not supported. The disk is being reset. |
400 | Missing%s | You must specify the parameter %s. | - |
400 | Invalid%s | The specified parameter %s is invalid. | - |
400 | NoPermission | Permission denied. | - |
400 | InvalidParameter.%s | The specified field %s invalid. Please check it again. | - |
For a list of error codes, visit the Service error codes.
Change history
Change time | Summary of changes | Operation |
---|---|---|
2024-09-05 | The Error code has changed | View Change Details |
2023-09-21 | The Error code has changed | View Change Details |