Modifies the configuration of an endpoint group.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes UpdateEndpointGroup

The operation that you want to perform. Set the value to UpdateEndpointGroup.

RegionId String Yes cn-hangzhou

The ID of the region where the Global Accelerator (GA) instance is deployed. Set the value to cn-hangzhou.

ClientToken String No 123e4567-e89b-12d3-a456-426655440000

The client token that is used to ensure the idempotence of the request.

You can use the client to generate the value, but you must ensure that it is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length.

EndpointGroupId String Yes epg-bp1dmlohjjz4kqaun****

The ID of the endpoint group.

Name String No group1

The name of the endpoint group.

The name must be 2 to 128 characters in length, and can contain letters, digits, underscores (_), and hyphens (-). The name must start with a letter.

Description String No EndpointGroup

The description of the endpoint group.

EndpointGroupRegion String Yes cn-hangzhou

The ID of the region where the endpoint group is deployed.

TrafficPercentage Integer No 20

The weight of the endpoint group when the listener is associated with multiple endpoint groups.

HealthCheckIntervalSeconds Integer No 3

The interval at which health checks are performed. Unit: seconds.

HealthCheckPath String No /healthcheck

The path to which health check requests are sent.

HealthCheckPort Integer No 20

The port used for health checks.

HealthCheckProtocol String No tcp

The protocol over which health check requests are sent. Valid values:

  • tcp: TCP
  • http: HTTP
  • https: HTTPS
ThresholdCount Integer No 3

The number of consecutive failed heath checks that must occur before an endpoint is considered unhealthy.

EndpointRequestProtocol String No HTTP

The protocol used by the backend service. Valid values:

  • HTTP
  • HTTPS
Note
  • You can set this parameter only when the listener that is associated with the endpoint group uses the HTTP or HTTPS protocol.
  • For an HTTP listener, the backend service protocol must be HTTP.
HealthCheckEnabled Boolean No true

Specifies whether to enable the health check feature. Valid values:

  • true (default): enables the health check feature.
  • false: disables the health check feature.
EndpointConfigurations.N.Type String Yes Ip

The type of the endpoint. Valid values:

  • Domain: a custom domain name
  • Ip: a custom IP address
  • PublicIp: a public IP address provided by Alibaba Cloud
  • ECS: an Elastic Compute Service (ECS) instance
  • SLB: a Server Load Balancer (SLB) instance
  • ALB: an Application Load Balancer (ALB) instance
  • OSS: an Object Storage Service (OSS) bucket
Note
  • If you set this parameter to ECS or SLB and the service-linked role AliyunServiceRoleForGaVpcEndpoint does not exist, the system automatically creates the service-linked role.
  • If you set this parameter to ALB and the service-linked role AliyunServiceRoleForGaAlb does not exist, the system automatically creates the service-linked role.
  • If you set this parameter to OSS and the service-linked role AliyunServiceRoleForGaOss does not exist, the system automatically creates the service-linked role.

For more information, see Service-linked roles.

EndpointConfigurations.N.EnableClientIPPreservation Boolean No false

Specifies whether to preserve client IP addresses. Valid values:

  • true: preserves client IP addresses.
  • false (default): does not preserve client IP addresses.
EndpointConfigurations.N.Weight Integer Yes 20

The weight of the endpoint.

Valid values: 0 to 255.

Note If you set the weight of an endpoint to 0, GA stops routing network traffic to the endpoint. Proceed with caution.
EndpointConfigurations.N.Endpoint String Yes 120.XX.XX.21

The IP address or domain name of the endpoint.

PortOverrides.N.ListenerPort Integer No 443

The listener port that is mapped to the endpoint port.

Note
  • Only HTTP and HTTPS listeners support port mapping.
  • The listener port must be the one used by the current listener.
PortOverrides.N.EndpointPort Integer No 80

The endpoint port that is mapped to the listener port.

Response parameters

Parameter Type Example Description
RequestId String 6FEA0CF3-D3B9-43E5-A304-D217037876A8

The ID of the request.

Examples

Sample requests

http(s)://[Endpoint]/?Action=UpdateEndpointGroup
&RegionId=cn-hangzhou
&ClientToken=123e4567-e89b-12d3-a456-426655440000
&EndpointGroupId=epg-bp1dmlohjjz4kqaun****
&Name=group1
&Description=EndpointGroup
&EndpointGroupRegion=cn-hangzhou
&TrafficPercentage=20
&HealthCheckIntervalSeconds=3
&HealthCheckPath=/healthcheck
&HealthCheckPort=20
&HealthCheckProtocol=tcp
&ThresholdCount=3
&EndpointConfigurations=[{"Type":"Ip","EnableClientIPPreservation":false,"Weight":20,"Endpoint":"120.XX.XX.21"}]
&EndpointRequestProtocol=HTTP
&PortOverrides=[{"ListenerPort":443,"EndpointPort":80}]
&HealthCheckEnabled=true
&Common request parameters

Sample success responses

XML format 

HTTP/1.1 200 OK
Content-Type:application/xml

<UpdateEndpointGroupResponse>
    <RequestId>6FEA0CF3-D3B9-43E5-A304-D217037876A8	</RequestId>
</UpdateEndpointGroupResponse>

JSON format 

HTTP/1.1 200 OK
Content-Type:application/json

{
  "RequestId" : "6FEA0CF3-D3B9-43E5-A304-D217037876A8\t"
}

Error codes

HttpCode Error code Error message Description
400 NoPermission.EnableHealthCheck You do not have permission to enable health check. The error message returned because you are unauthorized to enable the health check feature. You must apply to be added to the whitelist.
400 NotExist.EndPointGroup The endpoint group does not exist. The error message returned because the specified endpoint group does not exist.
400 StateError.EndPointGroup The specified state of endpoint group is invalid. The error message returned because the specified endpoint group is in an invalid state.
400 NotExist.Listener The listener does not exist. The error message returned because the specified listener does not exist.
400 NotActive.Listener The state of the listener is not active. The error message returned because the specified listener is unstable.
400 NotExist.Accelerator The accelerated instance does not exist. The error message returned because the specified GA instance does not exist.
400 StateError.Accelerator The state of the accelerated instance is invalid. The error message returned because the specified GA instance is in an invalid state.
400 QuotaExceeded.EndPoint The maximum number of endpoints is exceeded. The error message returned because the number of endpoints has reached the upper limit.
400 NoPermission.VpcEndpoint You are not authorized to perform the operation. The error message returned because you are unauthorized to create the service-linked role. Contact the owner of the Alibaba Cloud account or the administrator to acquire the AliyunGlobalAccelerationFullAccess permission or create a custom permission policy. The service name of the custom permission policy must be vpcendpoint.ga.aliyuncs.com, the service-linked role must be AliyunServiceRoleForGaVpcEndpoint, and the ram:CreateServiceLinkedRole permission must be granted.
400 QuotaExceeded.PortOverride The number of port override exceeds the limit. The error message returned because the number of port mappings reaches the upper limit.

For a list of error codes, visit the API Error Center.