Auto Scaling：SetInstancesProtection

Usage notes

Once ECS instances enter the Protected state, they become subject to the following restrictions:

• ECS instances will persist in the Protected state, unless you deliberately remove them from this state.

• Even in scenarios where automatic scale-in actions are initiated due to fluctuations in the number of ECS instances or the execution of event-triggered tasks, Auto Scaling does not remove ECS instances that are in the Protected state from their respective scaling groups. Only after being manually removed from their respective scaling groups can ECS instances that are in the Protected state be released. For more information, see Remove an ECS instance.

• ECS instances in the Protected state maintain their existing health status even when they undergo stopping or restarting processes.

Request parameters

Response parameters

Examples

Sample requests

http(s)://ess.aliyuncs.com/?Action=SetInstancesProtection
&ScalingGroupId=asg-bp18p2yfxow2dloq****
&ProtectedFromScaleIn=true
&InstanceId=["i-28wt4****"]
&<Common request parameters>

Sample success responses

XML format

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

<SetInstancesProtectionResponse>
    <RequestId>473469C7-AA6F-4DC5-B3DB-A3DC0DE3****</RequestId>
</SetInstancesProtectionResponse>

JSON format

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

{
  "RequestId" : "473469C7-AA6F-4DC5-B3DB-A3DC0DE3****"
}

Error codes

For a list of error codes, see Service error codes.