Last updated: 2021-06-16 16:52:49

    1. API Description

    Domain name for API request:

    This API is used to remove CVM instances from a scaling group. Instances removed via this API will not be terminated.

    • If the number of remaining IN_SERVICE instances in the scaling group is less than the minimum capacity, this API will return an error.
    • However, if the scaling group is in DISABLED status, the removal will not verify the relationship between the number of IN_SERVICE instances and the minimum capacity.
    • This removal will unassociate the CVM from the CLB instance that has been configured for the scaling group.

    A maximum of 20 requests can be initiated per second for this API.

    Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example:

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    2. Input Parameters

    The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

    Parameter Name Required Type Description
    Action Yes String Common parameter. The value used for this API: DetachInstances.
    Version Yes String Common parameter. The value used for this API: 2018-04-19.
    Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
    AutoScalingGroupId Yes String Auto scaling group ID
    InstanceIds.N Yes Array of String List of CVM instance IDs

    3. Output Parameters

    Parameter Name Type Description
    ActivityId String Scaling activity ID
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Example

    Example1 Removing instances from a scaling group

    Input Example
    <Common request parameters>

    Output Example

    "Response": {
      "ActivityId": "asa-bcfxhy55",
      "RequestId": "5b039ee6-e8ff-4605-bb24-b45337747431"

    5. Developer Resources


    TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

    Command Line Interface

    6. Error Code

    The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

    Error Code Description
    FailedOperation.NoActivityToGenerate No scaling activity is generated.
    InternalError An internal error occurred.
    InvalidParameterValue.InvalidAutoScalingGroupId Invalid scaling group ID.
    InvalidParameterValue.InvalidInstanceId Invalid instance ID.
    InvalidParameterValue.LimitExceeded The value exceeds the limit.
    ResourceInsufficient.AutoScalingGroupBelowMinSize The number of instances in the auto scaling group is below the minimum value.
    ResourceInsufficient.InServiceInstanceBelowMinSize The number of instances in a scaling group is less than the minimum capacity.
    ResourceNotFound.AutoScalingGroupNotFound The scaling group does not exist.
    ResourceNotFound.InstancesNotInAutoScalingGroup The target instance is not in the auto scaling group.
    ResourceUnavailable.AutoScalingGroupInActivity The auto scaling group is active.
    ResourceUnavailable.InstanceInOperation The specified instance is active.
    ResourceUnavailable.LoadBalancerInOperation CLB is active in the scaling group.