Last updated: 2020-04-03 12:01:27

    1. API Description

    Domain name for API request:

    This API is used to add one or more existing instances to a cluster.

    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:

    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: AddExistedInstances.
    Version Yes String Common parameter. The value used for this API: 2018-05-25.
    Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
    ClusterId Yes String Cluster ID
    InstanceIds.N Yes Array of String Instance list
    InstanceAdvancedSettings No InstanceAdvancedSettings Additional parameter to be set for the instance
    EnhancedService No EnhancedService Enhanced services. This parameter is used to specify whether to enable Cloud Security, Cloud Monitoring and other services. If this parameter is not specified, Cloud Monitor and Cloud Security are enabled by default.
    LoginSettings No LoginSettings Node login information (currently only supports using Password or single KeyIds)
    SecurityGroupIds.N No Array of String Security group to which the instance belongs. This parameter can be obtained from the sgId field returned by DescribeSecurityGroups. If this parameter is not specified, the default security group is bound. (Currently, you can only set a single sgId)
    HostName No String

    3. Output Parameters

    Parameter Name Type Description
    FailedInstanceIds Array of String IDs of failed nodes
    SuccInstanceIds Array of String IDs of successful nodes
    TimeoutInstanceIds Array of String IDs of (successful or failed) nodes that timed out
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Example

    Example1 Add one or more existing CVM instances to the specified cluster

    Add one or more existing CVM instances to the specified cluster

    Input Example
    &<common request parameters>

    Output Example

      "Response": {
        "RequestId": "eac6b301-a322-493a-8e36-83b295459397"

    5. Developer Resources

    API Explorer

    This tool allows online call, signature authentication, SDK code generation and quick search of APIs to greatly improve the efficiency of using TencentCloud APIs.


    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
    InternalError Internal error
    InternalError.Db DB error.
    InternalError.DbAffectivedRows DB error
    InternalError.Param Parameter error.
    InvalidParameter Parameter error
    LimitExceeded Quota limit exceeded

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