Domain name for API request: emr.intl.tencentcloudapi.com.
This API is used to describe the details of a DynamicInstance in an EMR on TKE cluster.
A maximum of 20 requests can be initiated per second for this API.
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: DescribeDynamicInstanceDetail. |
| 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 | EMR cluster ID. |
| RayClusterId | Yes | Integer | Ray cluster ID. |
| Parameter Name | Type | Description |
|---|---|---|
| RayClusterName | String | Ray cluster name. |
| RayClusterId | Integer | Ray cluster ID. |
| SubmitType | Integer | Creation type. Enumeration values:
|
| Namespace | String | Namespace. |
| CreateTime | String | Creation time. |
| UpdateTime | String | Update time. |
| Labels | Array of NameValue | labels |
| Tolerations | Array of Toleration | Tolerations |
| Env | Array of NameValue | Environment variable. |
| SupportExternalKerberosService | Boolean | Whether to rely on external Kerberos components. |
| KerberosCluster | String | Dependent Kerberos cluster. |
| Token | String | token |
| HeadGroupSpec | DynamicInstanceGroupSpec | HeadGroup |
| WorkerGroupSpecs | Array of DynamicInstanceGroupSpec | WorkerGroup |
| StorageConfigEnabled | Boolean | Whether to enable storage configuration. |
| RedisInstance | RedisInstance | Redis instance information. |
| CustomImage | CustomImage | Image information. |
| DashboardUrl | String | Dashboard link. |
| TotalPodCount | Integer | Total number of Pods. |
| HighAvailability | Boolean | Whether to support high availability. |
| PersistentVolume | PersistentVolume | Storage information. |
| RayClusterYaml | String | rayClusterYamlJson |
| ImageInfoV2 | ImageInfoV2 | Image information. |
| EnableHistoryServer | Boolean | Whether to enable log collection. |
| TensorBoardUrl | String | TensorBoard link. |
| 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. |
POST / HTTP/1.1
Host: emr.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: DescribeInsightMetricNodeList
<Common request parameters>
{
"InstanceId": "emr-a2jqs6n3",
"RayClusterId": 28
}{
"Response": {
"CreateTime": "2025-12-27 16:43:18",
"DashboardUrl": "http://43.141.243.208/raycluster",
"HeadGroupSpec": {
"Cpu": 1,
"Env": [
{
"Name": "testkey",
"Value": "testval"
}
],
"Gpu": 0,
"GpuType": "",
"GroupType": "HeadGroup",
"Labels": [
{
"Name": "label-key-01",
"Value": "label-val-01"
}
],
"MaxNodes": 0,
"MemSize": 2,
"MinNodes": 0,
"Name": "headGroup",
"PersistentVolume": {
"CBSVolumes": [],
"CFSVolumes": [],
"COSVolumes": [],
"StorageVolumeDetail": [],
"StorageVolumeName": [],
"VolumeMounts": []
},
"PodCount": 2,
"ResourceLabels": "{\"Custom1\":1,\"Custom2\":5}",
"Scheduler": "{\"nodeSelector\":{\"kubernetes.io/hostname\":\"10.0.1.61\"},\"nodeAffinity\":null}",
"StorageConfigEnabled": false,
"Tolerations": [
{
"Key": "toleration-key-01",
"Value": "toleration_val_01"
}
]
},
"HighAvailability": true,
"KerberosCluster": "emr-h6mtwtgn",
"Namespace": "251233703-emr-a2jqs6n3",
"PersistentVolume": {
"CBSVolumes": [],
"CFSVolumes": [],
"COSVolumes": [],
"StorageVolumeDetail": [],
"StorageVolumeName": [],
"VolumeMounts": []
},
"RayClusterId": 28,
"RayClusterName": "raycluster",
"RayClusterYaml": "apiVersion: ray.io/v1\nkind: RayCluster\nmetadata:\n name: raycluster\n namespace: 251233703-emr-a2jqs6n3\n annotations:\n ray.io/ft-enabled: \"true\"\n runtime.emr.tencent.com/raycluster-managedby-emr: \"true\"\nspec:\n headGroupSpec:\n serviceType: ClusterIP\n rayStartParams:\n enable-head-ha: \"true\"\n resources: '{\\\"Custom1\\\":1,\\\"Custom2\\\":5}'\n template:\n metadata:\n labels:\n label-key-01: label-val-01\n spec:\n tolerations:\n - key: toleration-key-01\n value: toleration_val_01\n nodeSelector:\n kubernetes.io/hostname: 10.0.1.61\n containers:\n - name: ray-head\n image: ccr.ccs.tencentyun.com/emr-image-base/ray:2.52.0-65-653-dev\n resources:\n requests:\n cpu: \"1\"\n memory: 2G\n limits:\n cpu: \"1\"\n memory: 2G\n env:\n - name: testkey\n value: testval\n securityContext:\n capabilities:\n add:\n - SYS_ADMIN\n replicas: 2\n workerGroupSpecs:\n - groupName: workerGroup0\n replicas: 1\n minReplicas: 1\n maxReplicas: 1\n rayStartParams: {}\n template:\n metadata: {}\n spec:\n containers:\n - name: ray-worker\n image: ccr.ccs.tencentyun.com/emr-image-base/ray:2.52.0-65-653-dev\n resources:\n requests:\n cpu: \"1\"\n memory: 2G\n limits:\n cpu: \"1\"\n memory: 2G\n securityContext:\n capabilities:\n add:\n - SYS_ADMIN\n - groupName: WorkerGroup1\n replicas: 1\n minReplicas: 1\n maxReplicas: 1\n rayStartParams: {}\n template:\n metadata: {}\n spec:\n containers:\n - name: ray-worker\n image: ccr.ccs.tencentyun.com/emr-image-base/ray:2.52.0-65-653-dev\n resources:\n requests:\n cpu: \"1\"\n memory: 2G\n limits:\n cpu: \"1\"\n memory: 2G\n securityContext:\n capabilities:\n add:\n - SYS_ADMIN\n",
"RedisInstance": {
"Host": "10.0.1.120",
"Id": "crs-2yrj6b29",
"Port": 6379
},
"RequestId": "f79d7d08-51b4-4569-bd47-0a6cd2abed6a",
"StorageConfigEnabled": false,
"SubmitType": 1,
"SupportExternalKerberosService": true,
"Token": "emr-token-1pqyhv6r-n4fnvseb-9b6svpe3",
"TotalPodCount": 4,
"UpdateTime": "2025-12-29 11:27:53",
"WorkerGroupSpecs": [
{
"Cpu": 1,
"Gpu": 0,
"GpuType": "",
"GroupType": "WorkerGroup",
"MaxNodes": 1,
"MemSize": 2,
"MinNodes": 1,
"Name": "workerGroup0",
"PersistentVolume": {
"CBSVolumes": [],
"CFSVolumes": [],
"COSVolumes": [],
"StorageVolumeDetail": [],
"StorageVolumeName": [],
"VolumeMounts": []
},
"PodCount": 1,
"ResourceLabels": "null",
"Scheduler": "",
"StorageConfigEnabled": false
},
{
"Cpu": 1,
"Gpu": 0,
"GpuType": "",
"GroupType": "WorkerGroup",
"MaxNodes": 1,
"MemSize": 2,
"MinNodes": 1,
"Name": "WorkerGroup1",
"PersistentVolume": {
"CBSVolumes": [],
"CFSVolumes": [],
"COSVolumes": [],
"StorageVolumeDetail": [],
"StorageVolumeName": [],
"VolumeMounts": []
},
"PodCount": 1,
"ResourceLabels": "null",
"Scheduler": "",
"StorageConfigEnabled": false
}
]
}
}TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.
There is no error code related to the API business logic. For other error codes, please see Common Error Codes.
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