Documentation|Tencent Cloud

Recent Pages

DescribeInstances

Last updated: 2020-07-31 10:59:09

1. API Description

Domain name for API request: emr.tencentcloudapi.com.

This API is used to query EMR instances.

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: emr.ap-shanghai-fsi.tencentcloudapi.com

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 parameter. The value used for this API: DescribeInstances.
Version	Yes	String	Common parameter. The value used for this API: 2019-01-03.
Region	Yes	String	Common parameter. For more information, please see the list of regions supported by the product.
DisplayStrategy	Yes	String	Cluster filtering policy. Valid values: clusterList: queries the list of clusters except terminated ones. monitorManage: queries the list of clusters except those that have been terminated, are being created, or failed to be created. cloudHardwareManage/componentManage: reserved fields with the same meaning as `monitorManage`.
InstanceIds.N	No	Array of String	Queries by one or more instance IDs in the format of `emr-xxxxxxxx`. For the format of this parameter, please see the `id.N` section in API Overview. If no instance ID is entered, the list of all instances under this `APPID` will be returned.
Offset	No	Integer	Page number. Default value: 0, indicating the first page.
Limit	No	Integer	Number of returned results per page. Default value: 10. Maximum value: 100
ProjectId	No	Integer	ID of the project to which the instance belongs. This parameter can be obtained from the `projectId` field in the return value of the `DescribeProject` API. If this value is -1, the list of all instances will be returned.
OrderField	No	String	Sorting field. Valid values: clusterId: sorts by cluster ID. addTime: sorts by instance creation time. status: sorts by instance status code.
Asc	No	Integer	Sorts according to `OrderField` in ascending or descending order. Valid values: 0: descending order. 1: ascending order. Default value: 0.

3. Output Parameters

Parameter Name	Type	Description
TotalCnt	Integer	Number of eligible instances.
ClusterList	Array of ClusterInstancesInfo	List of EMR instance details. Note: this field may return null, indicating that no valid values can be obtained.
TagKeys	Array of String	List of tag keys associated to an instance. Note: this field may return null, indicating that no valid values can be obtained.
RequestId	String	The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Querying instance details

Input Example

https://emr.tencentcloudapi.com/?Action=DescribeInstances
&Offset=0
&Limit=10
&ProjectId=0
&OrderField=clusterid
&Asc=0
&DisplayStrategy=clusterList
&InstanceIds.0=emr-p9f700x8
&<common request parameters>

Output Example

{
  "Response": {
    "ClusterList": [
      {
        "AddTime": "2019-09-16 16:48:01",
        "AlarmInfo": "",
        "AppId": 251008830,
        "ChargeType": 1,
        "ClusterId": "emr-p9f700x8",
        "ClusterName": "beckwu_do not delete prepaid cluster",
        "Config": {
          "ChargeType": 1,
          "ComNodeSize": 0,
          "ComResource": {
            "Cpu": 0,
            "DiskSize": 0,
            "DiskType": "",
            "MemSize": 0,
            "RootSize": 0,
            "Spec": "",
            "SpecName": "",
            "StorageType": 0
          },
          "CoreNodeSize": 2,
          "CoreResource": {
            "Cpu": 2,
            "DiskSize": 100,
            "DiskType": "CLOUD_BASIC",
            "MemSize": 8192,
            "RootSize": 0,
            "Spec": "CVM.S2",
            "SpecName": "EMR Standard S2",
            "StorageType": 2
          },
          "MasterNodeSize": 1,
          "MasterResource": {
            "Cpu": 2,
            "DiskSize": 100,
            "DiskType": "CLOUD_BASIC",
            "MemSize": 8192,
            "RootSize": 0,
            "Spec": "CVM.S2",
            "SpecName": "EMR Standard S2",
            "StorageType": 2
          },
          "OnCos": false,
          "SoftInfo": [
            "zookeeper-3.4.9",
            "hadoop-3.1.2",
            "knox-1.2.0",
            "sys-1.0"
          ],
          "TaskNodeSize": 1,
          "TaskResource": {
            "Cpu": 2,
            "DiskSize": 100,
            "DiskType": "CLOUD_BASIC",
            "MemSize": 8192,
            "RootSize": 0,
            "Spec": "CVM.S2",
            "SpecName": "EMR Standard S2",
            "StorageType": 2
          }
        },
        "EmrVersion": "EMR-V3.0.0",
        "Ftitle": "Cluster is running",
        "Id": 19541,
        "IsTradeCluster": 0,
        "MasterIp": "--",
        "ProjectId": 0,
        "RegionId": 1,
        "ResourceOrderId": 0,
        "RunTime": "0 days 2 hours 48 minutes 55 seconds",
        "Status": 2,
        "SubnetId": 1230738,
        "TradeVersion": 1,
        "Uin": "1875765535",
        "VpcId": 78518,
        "ZoneId": 100002
      }
    ],
    "RequestId": "4f337873-6fea-4338-9715-24f539b60949",
    "TotalCnt": 1
  }
}

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.

API 3.0 Explorer

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
InternalError	Internal error.
InternalError.AccountCgwError	An error occurred when calling other service API.
InternalError.CamCgwError	An error occurred when calling other service API.
InternalError.CamError	An error occurred when calling other service API.
InternalError.CbsCgwError	An error occurred when calling other service API.
InternalError.CbsError	An error occurred when calling other service API.
InternalError.CdbCgwError	An error occurred when calling other service API.
InternalError.CdbError	An error occurred when calling other service API.
InternalError.ConfigCgwError	An error occurred when calling other service API.
InternalError.CvmError	An error occurred when calling other service API.
InternalError.KmsError	An error occurred when calling other service API.
InternalError.ProjectCgwError	An error occurred when calling other service API.
InternalError.SgError	An error occurred when calling security group API.
InternalError.TagError	An error occurred when calling other service API.
InternalError.TradeCgwError	An error occurred when calling other service API.
InternalError.VpcCgwError	An error occurred when calling other service API.
InternalError.VpcError	An error occurred when calling other service API.
InternalError.WoodServerError	An error occurred when calling the Woodpecker server.
InvalidParameter	Invalid parameter.
InvalidParameter.DisplayStrategyNotMatch	Incorrect display policy.
InvalidParameter.InvalidClusterId	Invalid parameter: ClusterId.
InvalidParameter.OrderFieldNotMatch	Invalid sorting field.
ResourceNotFound.ClusterNotFound	The instance was not found.
ResourceNotFound.HardwareInfoNotFound	No hardware information found.