Modifies the zones of an Application Load Balancer (ALB) instance.

Note Fees may be incurred after you modify the zones of an ALB instance.

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 UpdateLoadBalancerZones

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

ClientToken String No 5A2CFF0E-5718-45B5-9D4D-70B3FF3898

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 make sure that it is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length.

DryRun Boolean No true

Specifies whether to only precheck this request. Valid values:

  • true: prechecks the request without creating the resource. The system checks the required parameters, request syntax, and limits. If the request fails to pass the check, an error message is returned. If the request passes the check, the DryRunOperation error code is returned.
  • false: sends the API request. This is the default value. If the request passes the precheck, a HTTP_2xx status code is returned and the operation is performed.
LoadBalancerId String Yes lb-bp1b6c719dfa08ex****

The ID of the ALB instance.

ZoneMappings Array Yes

The zones and the vSwitches in the zones. You must specify at least two zones. The specified zones and vSwitches overwrite the existing configurations.

VSwitchId String Yes vsw-bp1rmcrwg3erh1fh8****

The ID of the vSwitch in the zone. By default, each zone contains one vSwitch and one subnet.

ZoneId String Yes cn-hangzhou-a

The name of the zone. You can call the DescribeZones operation to query the zones.

Response parameters

Parameter Type Example Description
JobId String 72dcd26b-f12d-4c27-b3af-18f6aed5****

The ID of the asynchronous task.

RequestId String CEF72CEB-54B6-4AE8-B225-F876FF7BA984

The ID of the request.

Examples

Sample requests

http(s)://[Endpoint]/?Action=UpdateLoadBalancerZones
&ClientToken=5A2CFF0E-5718-45B5-9D4D-70B3FF3898
&DryRun=true
&LoadBalancerId=lb-bp1b6c719dfa08ex****
&ZoneMappings=[{"VSwitchId":"vsw-bp1rmcrwg3erh1fh8****","ZoneId":"cn-hangzhou-a"}]
&Common request parameters

Sample success responses

XML format

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

<UpdateLoadBalancerZonesResponse>
    <JobId>72dcd26b-f12d-4c27-b3af-18f6aed5****</JobId>
    <RequestId>CEF72CEB-54B6-4AE8-B225-F876FF7BA984</RequestId>
</UpdateLoadBalancerZonesResponse>

JSON format

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

{
  "JobId" : "72dcd26b-f12d-4c27-b3af-18f6aed5****",
  "RequestId" : "CEF72CEB-54B6-4AE8-B225-F876FF7BA984"
}

Error codes

HttpCode Error code Error message Description
400 IncorrectStatus.LoadBalancer The status of %s [%s] is incorrect. The error message returned because the status of the specified resource %s [%s] is invalid.
400 IncorrectBusinessStatus.LoadBalancer The business status of %s [%s]  is incorrect. The error message returned because the service status of the specified resource %s [%s] is invalid.
400 IncorrectBusinessStatus.Eip The business status of %s [%s]  is incorrect. The error message returned because the service status of the specified resource %s [%s] is invalid.
400 OperationDenied.ZoneVSwitchChanged The operation is not allowed because of %s. The error message returned because the operation is not allowed due to %s.
400 OperationDenied.ZoneMappingsNotChanged The operation is not allowed because of %s. The error message returned because the operation is not allowed due to %s.
400 ResourceNotEnough.VSwitchIp The specified resource %s is not enough. The error message returned because the specified resource %s is insufficient.
400 Mismatch.ZoneIdAndVSwitchId The %s and %s are mismatched. The error message returned because the specified %s and %s do not match.
404 ResourceNotFound.LoadBalancer The specified resource %s is not found. The error message returned because the specified resource %s does not exist.
404 ResourceNotFound.VSwitch The specified resource %s is not found. The error message returned because the specified resource %s does not exist.

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