Last updated: 2019-11-29 12:17:59

    1. API Description

    Domain name for API request:

    This API (DescribeHosts) is used to get the details of one or more CDH instances.

    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:

    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: DescribeHosts
    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.
    Filters.N No Array of Filter Filter conditions.
  • zone - String - Required: No - (Filter condition) Filter by availability zone.
  • project-id - Integer - Required: No - (Filter condition) Filter by project ID. You can view the list of created projects by calling DescribeProject or by logging in to the console. You can also create a new project by calling AddProject.
  • host-id - String - Required: No - (Filter condition) Filter by CDH ID. Example of a CDH ID: host-11112222.
  • host-name - String - Required: No - (Filter condition) Filter by CDH instance name.
  • host-state - String - Required: No - (Filter condition) Filter by CDH instance status. (PENDING: Creating|LAUNCH_FAILURE: Creation failed|RUNNING: Running|EXPIRED: Expired)
  • Offset No Integer Offset. Default is 0.
    Limit No Integer Number of values to be returned. Default is 20. Maximum is 100.

    3. Output Parameters

    Parameter Name Type Description
    TotalCount Integer Number of CDH instances that meet the condition
    HostSet Array of HostItem Details of a CDH instance
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Error Codes

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

    Error Code Description
    InvalidHostId.Malformed Invalid CDHID. The specified CDH ID is in an incorrect format. For example, host-1122 has an invalid ID length.
    InvalidParameterValue Invalid parameter value. The parameter value is in an incorrect format or is not supported.
    InvalidZone.MismatchRegion The specified zone does not exist.

    5. Example

    Example 1 Query the CDH instance list

    Input example
    &<Common request parameters>

    Output example

      "Response": {
        "HostSet": [
            "CreatedTime": "2018-01-04T09:45:39Z",
            "ExpiredTime": "2025-05-04T09:45:42Z",
            "HostChargeType": "PREPAID",
            "HostId": "host-ey16rkyg",
            "HostName": "bibibibib-111",
            "HostResource": {
              "CpuAvailable": 24,
              "CpuTotal": 24,
              "DiskAvailable": 1200,
              "DiskTotal": 1200,
              "MemAvailable": 56.0,
              "MemTotal": 56.0
            "HostState": "RUNNING",
            "HostType": "HS1",
            "InstanceIds": [],
            "Placement": {
              "ProjectId": 0,
              "Zone": "ap-guangzhou-2"
            "RenewFlag": "NOTIFY_AND_AUTO_RENEW"
        "RequestId": "6EF60BEC-0242-43AF-BB20-270359FB54A7",
        "TotalCount": 1

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