RemoveServersFromServerGroup - Server Load Balancer - Alibaba Cloud Documentation Center

Deletes server groups from a Network Load Balancer (NLB) instance.

Debugging

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Debug

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:
- For mandatory resource types, indicate with a prefix of * .
- 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
nlb:RemoveServersFromServerGroup	delete	*ServerGroup `acs:nlb:{#regionId}:{#accountId}:servergroup/{#ServerGroupId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
ServerGroupId	string	Yes	The server group ID.	sgp-atstuj3rtoptyui****
Servers	array<object>	Yes	The backend servers. You can specify up to 200 backend servers in each call.
Server	object	Yes	The backend server. You can specify up to 200 backend servers in each call.
ServerId	string	Yes	The backend server ID. If the server group is of the Instance type, set this parameter to the IDs of servers of the Ecs, Eni, or Eci type. If the server group is of the Ip type, set ServerId to IP addresses.	ecs-bp67acfmxazb4p****
ServerType	string	Yes	The type of the backend server. Valid values: Ecs: the Elastic Compute Service (ECS) instance Eni: the elastic network interface (ENI) Eci: the elastic container instance Ip: the IP address	Ecs
ServerIp	string	No	The IP addresses of the server. If the server group type is Ip, set the ServerId parameter to IP addresses.	192.168.6.6
Port	integer	No	The port that is used by the backend server. Valid values: 0 to 65535. If you do not set this parameter, the default value 0 is used.	443
DryRun	boolean	No	Specifies whether to perform a dry run. Valid values: true: validates the request without performing the operation. The system checks the request for potential issues, including missing parameter values, incorrect request syntax, and service limits. If the request fails the validation, the corresponding error message is returned. If the request passes the validation, the `DryRunOperation` error code is returned. false (default): validates the request and performs the operation. If the request passes the validation, a 2xx HTTP status code is returned and the operation is performed.	false
ClientToken	string	No	The client token used to ensure the idempotence of the request. You can use the client to generate the token. Ensure that the token is unique among different requests. Only ASCII characters are allowed. Note If you do not set this parameter, the value of RequestId is used.** The value of RequestId** is different for each request.	123e4567-e89b-12d3-a456-426655440000
RegionId	string	No	The ID of the region where the NLB instance is deployed. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou

Response parameters

Parameter	Type	Description	Example
	object	Removes backend servers from a server group.
RequestId	string	The request ID.	54B48E3D-DF70-471B-AA93-08E683A1B45
ServerGroupId	string	The server group ID.	sgp-atstuj3rtoptyui****
JobId	string	The ID of the asynchronous task.	72dcd26b-f12d-4c27-b3af-18f6aed5****

Examples

Sample success responses

JSONformat

{
  "RequestId": "54B48E3D-DF70-471B-AA93-08E683A1B45",
  "ServerGroupId": "sgp-atstuj3rtoptyui****",
  "JobId": "72dcd26b-f12d-4c27-b3af-18f6aed5****"
}

Error codes

HTTP status code	Error code	Error message	Description
400	Conflict.Lock	The Lock [%s] is conflict.	The specific resource is conflict.
400	IncorrectStatus.serverGroup	The status of servergroup [%s] is incorrect.	The current operation cannot be performed on the server group as its status is unavailable. Please check if the server group is currently undergoing any other operations.
400	IllegalParam.%s	The param of %s is illegal.	-
400	SystemBusy	System is busy, please try again later.	-
400	IdempotenceSignatureMismatch	The idempotence token of request is same with the prev one, but the signature is different.	The requested idempotent token is the same as the previous one, but the signature is different.
403	Forbidden.NoPermission	Authentication is failed for NoPermission.	Authentication is failed for NoPermission.
404	ResourceNotFound.BackendServer	The specified resource of BackendServer is not found.	The specified backend server resource was not found. Please check the input parameters.
404	ResourceNotFound.serverGroup	The specified resource of serverGroup is not found.	The specified resource of serverGroup is not found. Please check the input parameters.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-02-04	The Error code has changed	View Change Details
2024-01-29	The Error code has changed	View Change Details
2023-09-26	The Error code has changed	View Change Details
2023-09-05	The Error code has changed	View Change Details
2023-08-22	The Error code has changed	View Change Details
2023-08-22	The Error code has changed	View Change Details