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DescribeClusterNodes

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最終更新日: 2026-10-10 14:59:16

1. API Description

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

This API is used to query information of a cluster node.

A maximum of 20 requests can be initiated per second for this API.

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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 Params. The value used for this API: DescribeClusterNodes.
Version Yes String Common Params. The value used for this API: 2019-01-03.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
InstanceId Yes String Cluster ID, such as emr-xxxxxxxx.
NodeFlag Yes String Node identifier. Valid values:
  • all: indicates retrieving all types of nodes, except CDB information.
  • master: indicates retrieving Master node information.
  • core: indicates retrieving Core node information.
  • task: indicates retrieving Task node information.
  • common: indicates retrieving Common node information.
  • router: indicates retrieving Router node information.
  • db: indicates retrieving CDB information in the normal status.
  • recyle: indicates retrieving information of nodes isolated in the recycle bin, including CDB information.
  • renew: indicates retrieving information of all nodes pending renewal, including CDB information. Auto-renewed nodes will not be returned.

  • Note: Only the values above are supported currently. Entering other values will result in an error.
    ExportDb No Boolean Whether to carry CDB information when all node information is exported in CSV format.
    Offset No Integer Page number. The default value is 0, indicating the first page.
    Limit No Integer Number of items returned per page. Default value: 100. Maximum value: 100.
    If both offset and limit are not set, or both are set to 0, all data will be returned.
    HardwareResourceType No String Resource type. Valid values: all (default), host, and pod.
    SearchFields.N No Array of SearchItem Searchable fields.
    OrderField No String Sorting field.
    Asc No Integer Whether to sort data in ascending order. Valid values: 1 (yes) and 0 (no).

    3. Output Parameters

    Parameter Name Type Description
    TotalCnt Integer Total number of queried nodes.
    NodeList Array of NodeHardwareInfo Node detailed information list.
    TagKeys Array of String List of all tag keys for the user.
    HardwareResourceTypeList Array of String Resource type list.
    RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

    4. Example

    Example1 Obtaining Hardware Node Information

    This example shows you how to obtain the hardware node information by EMR cluster ID.

    Input Example

    POST / HTTP/1.1
    Host: emr.intl.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: DescribeClusterNodes
    <Common request parameters>
    
    {
        "InstanceId": "emr-6deluvd4",
        "NodeFlag": "all",
        "Limit": 10,
        "Offset": 0
    }

    Output Example

    {
        "Response": {
            "HardwareResourceTypeList": [
                "HOST",
                "MNode",
                "POD"
            ],
            "NodeList": [
                {
                    "AppId": 1258469122,
                    "ApplyTime": "2024-11-05 20:40:30",
                    "AutoFlag": 0,
                    "CdbIp": "",
                    "CdbNodeInfo": null,
                    "CdbPort": 0,
                    "ChargeType": 0,
                    "Clients": "HDFS,YARN,ZOOKEEPER,FILEBEAT,RUNTIME",
                    "CpuNum": 4,
                    "CurrentTime": "2024-11-05 20:44:07",
                    "Destroyable": 0,
                    "DeviceClass": "VSELF_5",
                    "DeviceName": "EMR Standard S5",
                    "DisableApiTermination": false,
                    "DiskSize": "200.00 GB",
                    "DynamicPodSpec": "",
                    "EmrResourceId": "emr-vm-3ep60g79",
                    "ExpireTime": "0000-00-00 00:00:00",
                    "Flag": 2,
                    "FreeTime": "0000-00-00 00:00:00",
                    "HardwareResourceType": "HOST",
                    "HwDiskSize": 214748364800,
                    "HwDiskSizeDesc": "200.00 GB",
                    "HwMemSize": 8589934592,
                    "HwMemSizeDesc": "8GB",
                    "Ip": "10.233.179.208",
                    "IsAutoRenew": 1,
                    "IsDynamicSpec": 0,
                    "IsFederation": 0,
                    "MCMultiDisk": [
                        {
                            "Count": 1,
                            "Type": 4,
                            "Volume": 214748364800
                        }
                    ],
                    "MemDesc": "8GB",
                    "MemSize": 8589934592,
                    "Mutable": 1,
                    "NameTag": "core.0",
                    "OrderNo": "ins-79jcgj7m",
                    "RegionId": 1,
                    "Remark": "",
                    "RootSize": 70,
                    "RootStorageType": 4,
                    "SerialNo": "240606f1-dc72-4760-958f-3d11b7430c9f",
                    "ServiceClient": "",
                    "Services": "DataNode,Filebeat,NodeManager,Sysctl",
                    "ServicesStatus": "DataNode:STARTED,Filebeat:STARTED,NodeManager:STARTED,Sysctl:STARTED",
                    "SharedClusterId": "",
                    "SharedClusterIdDesc": "",
                    "Spec": "CVM.S5",
                    "StorageType": 4,
                    "SubnetInfo": {
                        "SubnetId": "subnet-ax8z9f1u",
                        "SubnetName": "vigo-subnet"
                    },
                    "SupportModifyPayMode": 0,
                    "Tags": [],
                    "TradeVersion": 1,
                    "WanIp": "",
                    "Zone": "ap-guangzhou-3",
                    "ZoneId": 100003
                },
                {
                    "AppId": 1258469122,
                    "ApplyTime": "2024-11-05 20:40:30",
                    "AutoFlag": 0,
                    "CdbIp": "",
                    "CdbNodeInfo": null,
                    "CdbPort": 0,
                    "ChargeType": 0,
                    "Clients": "HDFS,YARN,ZOOKEEPER,FILEBEAT,RUNTIME",
                    "CpuNum": 4,
                    "CurrentTime": "2024-11-05 20:44:07",
                    "Destroyable": 0,
                    "DeviceClass": "VSELF_5",
                    "DeviceName": "EMR Standard S5",
                    "DisableApiTermination": false,
                    "DiskSize": "200.00 GB",
                    "DynamicPodSpec": "",
                    "EmrResourceId": "emr-vm-az843bs9",
                    "ExpireTime": "0000-00-00 00:00:00",
                    "Flag": 2,
                    "FreeTime": "0000-00-00 00:00:00",
                    "HardwareResourceType": "HOST",
                    "HwDiskSize": 214748364800,
                    "HwDiskSizeDesc": "200.00 GB",
                    "HwMemSize": 8589934592,
                    "HwMemSizeDesc": "8GB",
                    "Ip": "10.233.179.138",
                    "IsAutoRenew": 1,
                    "IsDynamicSpec": 0,
                    "IsFederation": 0,
                    "MCMultiDisk": [
                        {
                            "Count": 1,
                            "Type": 4,
                            "Volume": 214748364800
                        }
                    ],
                    "MemDesc": "8GB",
                    "MemSize": 8589934592,
                    "Mutable": 1,
                    "NameTag": "core.1",
                    "OrderNo": "ins-aodlsfs2",
                    "RegionId": 1,
                    "Remark": "",
                    "RootSize": 70,
                    "RootStorageType": 4,
                    "SerialNo": "a167d792-3f7d-4927-bc64-70604b4172d2",
                    "ServiceClient": "",
                    "Services": "DataNode,Filebeat,NodeManager,Sysctl",
                    "ServicesStatus": "DataNode:STARTED,Filebeat:STARTED,NodeManager:STARTED,Sysctl:STARTED",
                    "SharedClusterId": "",
                    "SharedClusterIdDesc": "",
                    "Spec": "CVM.S5",
                    "StorageType": 4,
                    "SubnetInfo": {
                        "SubnetId": "subnet-ax8z9f1u",
                        "SubnetName": "vigo-subnet"
                    },
                    "SupportModifyPayMode": 0,
                    "Tags": [],
                    "TradeVersion": 1,
                    "WanIp": "",
                    "Zone": "ap-guangzhou-3",
                    "ZoneId": 100003
                },
                {
                    "AppId": 1258469122,
                    "ApplyTime": "2024-11-05 20:40:30",
                    "AutoFlag": 0,
                    "CdbIp": "",
                    "CdbNodeInfo": null,
                    "CdbPort": 0,
                    "ChargeType": 0,
                    "Clients": "HDFS,YARN,ZOOKEEPER,OPENLDAP,KNOX,FILEBEAT,RUNTIME",
                    "CpuNum": 8,
                    "CurrentTime": "2024-11-05 20:44:07",
                    "Destroyable": 0,
                    "DeviceClass": "VSELF_5",
                    "DeviceName": "EMR Standard S5",
                    "DisableApiTermination": false,
                    "DiskSize": "200.00 GB",
                    "DynamicPodSpec": "",
                    "EmrResourceId": "emr-vm-7sgwp92l",
                    "ExpireTime": "0000-00-00 00:00:00",
                    "Flag": 1,
                    "FreeTime": "0000-00-00 00:00:00",
                    "HardwareResourceType": "HOST",
                    "HwDiskSize": 214748364800,
                    "HwDiskSizeDesc": "200.00 GB",
                    "HwMemSize": 17179869184,
                    "HwMemSizeDesc": "16GB",
                    "Ip": "10.233.179.87",
                    "IsAutoRenew": 1,
                    "IsDynamicSpec": 0,
                    "IsFederation": 0,
                    "MCMultiDisk": [
                        {
                            "Count": 1,
                            "Type": 4,
                            "Volume": 214748364800
                        }
                    ],
                    "MemDesc": "16GB",
                    "MemSize": 17179869184,
                    "Mutable": 1,
                    "NameTag": "master.0",
                    "OrderNo": "ins-olrawbba",
                    "RegionId": 1,
                    "Remark": "",
                    "RootSize": 70,
                    "RootStorageType": 4,
                    "SerialNo": "b8f36fdb-7f78-402e-ace6-63b3d3f277fd",
                    "ServiceClient": "",
                    "Services": "Filebeat,gateway,JobHistoryServer,ldap,NameNode,Zookeeper,ResourceManager,slapd,Sysctl,TimeLineServer",
                    "ServicesStatus": "Filebeat:STARTED,gateway:STARTED,JobHistoryServer:STARTED,ldap:STARTED,NameNode:STARTED,Zookeeper:STARTED,ResourceManager:STARTED,slapd:STARTED,Sysctl:STARTED,TimeLineServer:STARTED",
                    "SharedClusterId": "",
                    "SharedClusterIdDesc": "",
                    "Spec": "CVM.S5",
                    "StorageType": 4,
                    "SubnetInfo": {
                        "SubnetId": "subnet-ax8z9f1u",
                        "SubnetName": "vigo-subnet"
                    },
                    "SupportModifyPayMode": 0,
                    "Tags": [],
                    "TradeVersion": 1,
                    "WanIp": "0.0.0.0",
                    "Zone": "ap-guangzhou-3",
                    "ZoneId": 100003
                }
            ],
            "RequestId": "ee21e3bd-2340-4501-b63c-2edbcff0f220",
            "TagKeys": null,
            "TotalCnt": 3
        }
    }

    5. Developer Resources

    SDK

    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
    FailedOperation Operation failed.
    FailedOperation.GetCamRoleFailed Failed to obtain the CAM role.
    FailedOperation.GetCamServerFailed Failed to call the CAM service.
    InternalError Internal error.
    InternalError.AccountCgwError Internal service call exception.
    InternalError.CamCgwError Internal service call exception.
    InternalError.CamError Internal service call exception.
    InternalError.CbsCgwError Internal service call exception.
    InternalError.CbsError Internal service call exception.
    InternalError.CdbCgwError Internal service call exception.
    InternalError.CdbError Internal service call exception.
    InternalError.ConfigCgwError Internal service call exception.
    InternalError.CvmError Internal service call exception.
    InternalError.KmsError Internal service call exception.
    InternalError.ProjectCgwError Internal service call exception.
    InternalError.SgError An exception occurred when the security group API is called.
    InternalError.TagError Internal service call exception.
    InternalError.TradeCgwError Internal service call exception.
    InternalError.VpcCgwError Internal service call exception.
    InternalError.VpcError Internal service call exception.
    InternalError.WoodServerError Internal service call exception.
    InvalidParameter.InvalidAppId Invalid parameter: APPID.
    InvalidParameter.InvalidInstanceName Invalid cluster name.
    InvalidParameter.InvalidNodeType Invalid NodeType.
    ResourceNotFound.ClusterNotFound The instance cannot be found.
    ResourceNotFound.InstanceNotFound The instance cannot be found.
    UnauthorizedOperation.CheckCamAuth No permission to verify account operations.
    UnsupportedOperation The operation is not supported.

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