Docs

Auto Scaling

ScalingInstances

ExitStandby - Removes an instance from standby status

Remove an ECS instance in a scaling group from standby status. For more information, see Setting instances to standby status.

Debugging

API Explorer

You can initiate calls online through API Explorer without paying attention to the signature generation process and quickly obtain the call results.

Go to debug

Request parameters

Only the request parameters specific to this operation and some common parameters are listed below. For more information, refer to Common parameters.

Action string required Sample value: ExitStandby

The operation that you want to perform. Valid value: ExitStandby.

Version string required Sample value: 2020-01-01

The version of the API. Value: 2020-01-01.

InstanceIds.N string[] Optional Sample value: i-ybmike5l70l8j1ha****

The instance ID. You can call DescribeScalingInstances to query instance IDs.

Parameter - N: Specifies the serial number of the instance. Valid value: 1–20.

Separate multiple instance IDs with &.

ScalingGroupId string required Sample value: scg-ybmssdnnhn5pkgyd****

The ID of the scaling group.

ClientToken string Optional Sample value: 333456899ff****

ClientToken is used to ensure the idempotency of the request. The client can automatically generate a token, but you need to ensure that it is unique across requests. This prevents duplicate operations caused by multiple retries when the API request times out or an internal server error occurs. Values:

Not more than 64 ASCII characters.

Response parameters

This operation has no specific response parameters. For more information, refer to Response structure.

Sample request

GET /?Action=ExitStandby&ScalingGroupId=scg-ybmssdnnhn5pkgyd****&Version=2020-01-01 HTTP/1.1​
Host: auto-scaling.cn-beijing.volcengineapi.com​
X-Date: 20240507T112457Z​
Authorization: HMAC-SHA256 Credential=Adfks******wekfwe/20240507/cn-beijing/auto_scaling/request, SignedHeaders=host;x-date, Signature=47a7d934ff7b37c03938******cd7b8278a40a1057690c401e92246a0e41085f​
​
​

Sample response

{​
  "ResponseMetadata": {​
    "RequestId": "2024050719250503616424005641947E",​
    "Version": "2020-01-01",​
    "Service": "auto_scaling",​
    "Region": "cn-beijing"​
  },​
  "Result": {}​
}​

Error codes

The table below lists the business-related error codes of the operation. For more information, refer to Common error codes.

Status code	Error code	Error message	Description
400	InvalidInstance.InvalidStatus	The specified Instance [%s] is not in the correct status.	The status of the specified instance does not support this operation.
400	InvalidScalingGroup.InvalidStatus	The specified ScalingGroup is not in the correct status.	The current status of the specified scaling group does not support this operation.
400	MissingParameter.ScalingGroupId	The required parameter ScalingGroupId is not supplied.	The scaling group ID cannot be empty.
404	InvalidInstanceId.NotFound	The specified InstanceId [%s] does not exist.	The specified instance does not exist.
404	InvalidScalingGroupId.NotFound	The specified ScalingGroup [%s] does not exist.	The specified scaling group does not exist.
500	InternalError	An internal error has occurred.	An internal error occurred. Try again. If multiple attempts fail, submit a ticket.

Last updated: 2026.06.24 17:08:54