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

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.

3. Output Parameters

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.

• Tencent Cloud SDK 3.0 for Python
• Tencent Cloud SDK 3.0 for Java
• Tencent Cloud SDK 3.0 for PHP
• Tencent Cloud SDK 3.0 for Go
• Tencent Cloud SDK 3.0 for NodeJS
• Tencent Cloud SDK 3.0 for .NET

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.