Adds backend servers to a server group.
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 |
---|---|---|---|---|
slb:AddVServerGroupBackendServers | WRITE |
|
| none |
Request parameters
Parameter | Type | Required | Description | Example |
---|---|---|---|---|
RegionId | string | Yes | The ID of the region where the Classic Load Balancer (CLB) instance is created. | cn-hangzhou |
VServerGroupId | string | Yes | The ID of the server group. | rsp-cige6****** |
BackendServers | string | Yes | The list of backend servers. You can specify up to 20 backend servers in each request. The following parameters are used to specify the backend servers:
Examples:
| [{ "ServerId": "eni-xxxxxxxxx", "Weight": "100", "Type": "eni", "ServerIp": "192.168.**.**", "Port":"80","Description":"test-112" },{ "ServerId": "eni-xxxxxxxxx", "Weight": "100", "Type": "eni", "ServerIp": "172.166.**.**", "Port":"80","Description":"test-113" }] |
Response parameters
Examples
Sample success responses
JSON
format
{
"VServerGroupId": "rsp-cige6j******",
"RequestId": "9DEC9C28-AB05-4DDF-9A78-6B08EC9CE18C",
"BackendServers": {
"BackendServer": [
{
"Type": "ecs",
"Weight": 100,
"Description": "backend server",
"Port": 70,
"ServerId": "vm-231"
}
]
}
}
Error codes
HTTP status code | Error code | Error message |
---|---|---|
400 | InvalidBackendServers.ServerIpConflict | %s |
400 | OperationUnsupported.AddVServerGroupBackendServers | This type of backend server is not allowed to attached to singleTunnel or anyTunnel lb. |
400 | IncorrectStatus.RSByPassToas | %s |
400 | BackendServer.InvalidType | The specified Type is invalid. |
400 | BackendServer.ServerRegionIdNotEqual | The specified ServerRegionId must be equal. |
400 | OperationFailed.InvalidCen | The cen related with this loadbalancer is invalid. |
400 | IncorrectStatus.CenNotAssociated | The action is invalid because the loadbalancer is not associated with cen. |
400 | InvalidBackendServers.MissingCenBandWidth | The bandwidth is missing between loadbalancer and backendServers in cen. |
400 | InvalidBackendServers.VpcNotInCen | The BackendServers is not in the cen associated with the loadbalancer. |
400 | InvalidServerId.NotExist | The specified ServerId is not exist. |
400 | MissingParameter.ServerRegionId | The parameter ServerRegionId is required. |
400 | MissingParameter.VbrId | The parameter VbrId is required. |
400 | InvalidParameter.ServerRegionId | The parameter ServerRegionId is invalid for crossborder. |
400 | InvalidVbrId.NotInCen | The VbrId is not in the cen associated with the loadbalancer. |
400 | InvalidParameter.ServerRegionId | The specified ServerRegionId is invalid. |
For a list of error codes, visit the Service error codes.
Change history
Change time | Summary of changes | Operation | ||||||
---|---|---|---|---|---|---|---|---|
2023-09-26 | The Error code has changed | see changesets | ||||||
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2023-09-08 | The Error code has changed | see changesets | ||||||
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