Last updated: 2021-03-19 16:32:37

1. API Description

Domain name for API request:

This API is used to restart instances.

  • You can only perform this operation on instances whose status is RUNNING.
  • If the API is called successfully, the instance status will become REBOOTING. After the instance is restarted, its status will become RUNNING again.
  • Forced restart is supported. A forced restart is similar to switching off the power of a physical computer and starting it again. It may cause data loss or file system corruption. Be sure to only force start a CVM when it cannot be restarted normally.
  • Batch operations are supported. The maximum number of instances in each request is 100.

A maximum of 10 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: RebootInstances.
Version Yes String Common parameter. The value used for this API: 2017-03-12.
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
InstanceIds.N Yes Array of String Instance IDs. To obtain the instance IDs, you can call DescribeInstances and look for InstanceId in the response. You can operate up to 100 instances in each request.
ForceReboot No Boolean Whether to force restart an instance after a normal restart fails. Valid values:
  • TRUE: force restart an instance after a normal restart fails
  • FALSE: do not force restart an instance after a normal restart fails

    Default value: FALSE.
  • StopType No String Shutdown type. Valid values:
  • SOFT: soft shutdown
  • HARD: hard shutdown
  • SOFT_FIRST: perform a soft shutdown first, and perform a hard shutdown if the soft shutdown fails

    Default value: SOFT.
  • 3. Output Parameters

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

    4. Example

    Example1 Restarting instances

    This example shows you how to restart two instances.

    Input Example

    &<Common request parameters>

    Output Example

      "Response": {
        "RequestId": "6ef60bec-0242-43af-bb20-270359fb54a7"

    5. Developer Resources


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