Product Introduction

Overview

Strengths

Scenarios

Service Limits

Access Management

Purchase Guide

Getting Started

Creating a Scaling Plan in 5 Minutes

Step 1:Creating a Launch Configuration

Step 2:Creating a Scaling Group

Step 3:Creating a Scaling Policy

Tutorial

Creating Web Services

Creating High-performance Computing Cluster

Creating Servers for Sending Requests

Configuring For High Availability Services

Launch Configuration

Launch Configuration Overview

Creating a Launch Configuration

Viewing Launch Configuration List

Modifying Launch Configurations

Exception Detection

Scaling Groups

Scaling Group Overview

Creating a Scaling Group

Viewing Scaling Group List

Modifying Scaling Groups

Modifying Bound Instances

Adding CLBs

Delete scaling group

Creating Notifications

Creating Scaling Activity Notifications

Specifying Notification Recipients

Expanding and Reducing Capacity

Auto Scaling Lifecycle Hook

Managing Scheduled Actions

Managing an Alarm-triggered Policy

Instance Health Check

Expanding Capacity Manually

Scale-in Process

Viewing Scaling Activities

Suspending and Resuming Scaling

Scale-in Removal Protection

Scaling Activity Cancelled

Scaling Activity Failed

Cooldown Period

Monitoring

Monitor Alarm Metrics

Running Status Check

Scheduled Task

Scheduled Task Execution Time Description

Troubleshooting

Scaling Group Doesn't Work

Scaling Activity Failed

Use Cases

Setting a Fixed Outbound IP Address for Scaling Groups

Deploying Elastic Web Application Service

Enabling Services Upon CVM Start-up

Customer Cases

iCarbonX

API Documentation

History

Introduction

API Category

Making API Requests

Scaling Group APIs

Scaling Group Instances APIs

Launch Configuration APIs

Scheduled Action APIs

Alarm Trigger Policy APIs

Notification APIs

Lifecycle Hook APIs

Instance Refresh APIs

Other APIs

Data Types

Error Codes

FAQs

Glossary

StartAutoScalingInstances

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Última atualização: 2025-10-30 21:28:09

1. API Description

Domain name for API request: as.intl.tencentcloudapi.com.

This API is used to start up CVM instances in a scaling group.

After startup, the instance will be in the IN_SERVICE status, which will increase the desired capacity. Please note that the desired capacity cannot exceed the maximum value.
This API supports batch operation. Up to 100 instances can be started up in each request.

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

We recommend you to use API Explorer

Try it

API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

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 Params. The value used for this API: StartAutoScalingInstances.
Version	Yes	String	Common Params. The value used for this API: 2018-04-19.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product.
AutoScalingGroupId	Yes	String	Scaling group ID. obtain available scaling group ids in the following ways:. Query the scaling group ID by logging in to the console. . Specifies the scaling group ID obtained by calling the api DescribeAutoScalingGroups and retrieving the AutoScalingGroupId from the return information. .
InstanceIds.N	Yes	Array of String	Specifies the instance ID list of CVM to enable. you can obtain available instance ID in the following ways. Query instance ID by logging in to the console. . Get the instance ID by calling the api DescribeInstances and retrieving the `InstanceId` from the returned information. .

3. Output Parameters

Parameter Name	Type	Description
ActivityId	String	The scaling activity ID.
RequestId	String	The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Starting up CVM instances

Input Example

POST / HTTP/1.1
Host: as.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: StartAutoScalingInstances
<Common request parameters>

{
    "AutoScalingGroupId": "asg-boz1qhnk",
    "InstanceIds": [
        "ins-osckfnm7",
        "ins-cri8d02t"
    ]
}

Output Example

{
    "Response": {
        "ActivityId": "asa-a023dwdj",
        "RequestId": "28cf9089-2b76-4934-9d1b-b2694c679ff0"
    }
}

5. Developer Resources

SDK

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

Command Line Interface

Tencent Cloud CLI 3.0

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.
InvalidParameter.ActionNotFound	Invalid Action request.
InvalidParameterValue.InvalidAutoScalingGroupId	Invalid scaling group ID.
InvalidParameterValue.InvalidInstanceId	Invalid instance ID.
ResourceInsufficient.AutoScalingGroupAboveMaxSize	The maximum number of instances in the auto scaling group is exceeded.
ResourceInsufficient.InServiceInstanceAboveMaxSize	The number of instances in a scaling group is more than the maximum 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.

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