Scales out an application.


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Request headers

This operation only uses the common request header. For more information, see Common request parameters.

Request syntax

POST /pop/v5/changeorder/co_scale_out HTTP/1.1

Request parameters

Parameter Type Position Required Example Description
AppId String Query Yes 3616cdca-4f92-4413*****************

The ID of the application that you want to scale out. You can call the ListApplication operation to query the application ID. For more information, see ListApplication.

DeployGroup String Query Yes 4f1fb6f5-6769-4bd6******************

The ID of the instance group to which the application that you want to scale out belongs. You can call the QueryApplicationStatus operation to query the group ID. For more information, see QueryApplicationStatus.

EcuInfo String Query Yes 8123db90-880f-486f-b***************

The ID of the elastic compute unit (ECU) that corresponds to the Elastic Compute Service (ECS) instance to be scaled out. You can call the ListScaleOutEcu operation to query the ECU ID. For more information, see ListScaleOutEcu. Separate multiple ECU IDs with commas (,).

Response parameters

Parameter Type Example Description
ChangeOrderId String f4208118-7171-4e20-92************

The ID of the change process. You can call the GetChangeOrderInfo operation to query the progress of this operation. For more information, see GetChangeOrderInfo.

Code Integer 200

The returned HTTP status code.

Message String success

The additional information.

RequestId String D16979DC-4D42-***********************

The ID of the request.


Sample requests

POST /pop/v5/changeorder/co_scale_out HTTP/1.1
Common request parameters
  "AppId": ""
  "DeployGroup": ""
  "EcuInfo": ""

Sample success responses

XML format


JSON format

	"Message": "success",
	"ChangeOrderId": "f4208118-7171-4e20-92************",
	"Code": 200

Error codes

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