Help & DocumentationTencent Kubernetes Engine


Last updated: 2019-12-14 10:48:05

1. API Description

API domain name:

This API describes node instance information for the specified cluster.

API request rate limit: 20 requests/sec.

Note: This API supports financial regions. As financial regions and non-financial regions are isolated, if a financial region,such as ap-shanghai-fsi, is assigned to the common parameter Region, we recommend you include that financial region in your domain name , such as

2. Input Parameters

The following parameters are required for requesting this API, including action-specific parameters and common parameters. For more information about common parameters for all requests, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common parameter. The name of this API: DescribeClusterInstances
Version Yes String Common parameter. The version of this API: 2018-05-25
Region Yes String Common parameter. For more information, see the list of regions supported by the product.
ClusterId Yes String Cluster ID
Offset No Integer Offset; default is 0
Limit No Integer Maximum number of output entries; default is 20
InstanceIds.N No Array of String List of node instances IDs to be queried (by default, this parameter is left blank, indicating that querying all node instances in the cluster)

3. Output Parameters

Parameter Name Type Description
TotalCount Integer Total number of instances in the cluster
InstanceSet Array of Instance List of instances in the cluster
RequestId String Unique ID of the request. Each request returns a unique ID. The RequestId is required to troubleshoot issues.

4. Samples

Sample 1. Querying Cluster Instance Information

Query cluster instance information

Input Sample Code
&<Common request parameters>

Output Sample Code

  "Response": {
    "TotalCount": 1,
    "InstanceSet": [
        "InstanceId": "ins-gsk7l6vw",
        "InstanceRole": "WORKER",
        "InstanceState": "running",
        "FailedReason": "",
        "InstanceAdvancedSettings": {
          "Unschedulable": 0
    "RequestId": "82f2fe9c-c5fa-4077-9236-f1341180a696"

5. Resources for Developers

API Explorer

This tool provides various capabilities such as online call, signature verification, SDK code generation, and quick API retrieval that significantly reduce the difficulty of using TencentCloud API.

6. Error Codes

The following error codes are API business logic-related. For other error codes, see Common Error Codes.

Error Code Description
FailedOperation Operation failed.
InternalError Internal error.
InternalError.Db Database error.
InternalError.DbAffectivedRows Database effective function error.
InternalError.InitMasterFailed Master node initialization failed.
InternalError.Param Param.
InternalError.PublicClusterOpNotSupport The cluster does not support the current operation.
InvalidParameter Invalid parameter.
LimitExceeded Quota limit is exceeded.