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开源大数据平台E-MapReduce:GetNodeGroup - 获取节点组

更新时间:Aug 27, 2026

获取节点组详情。

接口说明

获取节点组详情。

调试

您可以在OpenAPI Explorer中直接运行该接口,免去您计算签名的困扰。运行成功后,OpenAPI Explorer可以自动生成SDK代码示例。

调试

授权信息

下表是API对应的授权信息,可以在RAM权限策略语句的Action元素中使用,用来给RAM用户或RAM角色授予调用此API的权限。具体说明如下:

  • 操作:是指具体的权限点。

  • 访问级别:是指每个操作的访问级别,取值为写入(Write)、读取(Read)或列出(List)。

  • 资源类型:是指操作中支持授权的资源类型。具体说明如下:

    • 对于必选的资源类型,用前面加 * 表示。

    • 对于不支持资源级授权的操作,用全部资源表示。

  • 条件关键字:是指云产品自身定义的条件关键字。

  • 关联操作:是指成功执行操作所需要的其他权限。操作者必须同时具备关联操作的权限,操作才能成功。

操作

访问级别

资源类型

条件关键字

关联操作

emr:GetNodeGroup

get

*全部资源

*

请求参数

名称

类型

必填

描述

示例值

RegionId

string

区域 ID。

cn-hangzhou

ClusterId

string

集群 ID。

c-b933c5aac8fe****

NodeGroupId

string

节点组 ID。

ng-869471354ecd****

返回参数

名称

类型

描述

示例值

object

返回数据

NodeGroup NodeGroup

节点组。

RequestId

string

请求 ID。

DD6B1B2A-5837-5237-ABE4-FF0C8944****

示例

正常返回示例

JSON格式

{
  "NodeGroup": {
    "ZoneId": "cn-beijing-h",
    "NodeGroupId": "ng-869471354ecd****",
    "NodeGroupName": "core-1",
    "NodeGroupType": "CORE",
    "RunningNodeCount": 3,
    "InstanceTypes": [
      ""
    ],
    "PaymentType": "PayAsYouGo",
    "DataDisks": [
      {
        "Category": "cloud_essd",
        "Size": 80,
        "PerformanceLevel": "PL1",
        "Count": 5
      }
    ],
    "SystemDisk": {
      "Category": "cloud_essd",
      "Size": 60,
      "PerformanceLevel": "PL1",
      "Count": 1
    },
    "NodeGroupState": "CREATED",
    "AdditionalSecurityGroupIds": [
      ""
    ],
    "WithPublicIp": false,
    "VSwitchIds": [
      ""
    ],
    "SpotStrategy": "NoSpot",
    "SpotBidPrices": [
      {
        "InstanceType": "ecs.g7.2xlarge",
        "BidPrice": 1000
      }
    ],
    "StateChangeReason": {
      "Code": "MissingParameter",
      "Message": "The instance type is required."
    },
    "MinimalNodeCount": 0,
    "MaximalNodeCount": 200,
    "GracefulShutdown": false,
    "SpotInstanceRemedy": true,
    "CompensateWithOnDemand": true,
    "NodeResizeStrategy": "PRIORITY",
    "CostOptimizedConfig": {
      "OnDemandBaseCapacity": 80,
      "OnDemandPercentageAboveBaseCapacity": 80,
      "SpotInstancePools": 2
    },
    "DeploymentSetStrategy": "NONE",
    "AutoCompensateState": true,
    "ExtraAttributes": {
      "key": ""
    },
    "AckConfig": {
      "AckInstanceId": "",
      "NodeSelectors": [
        {
          "Key": "department",
          "Value": "IT"
        }
      ],
      "Tolerations": [
        {
          "Key": "",
          "Value": "",
          "Operator": "",
          "Effect": ""
        }
      ],
      "Namespace": "",
      "RequestCpu": 0,
      "RequestMemory": 0,
      "LimitCpu": 0,
      "LimitMemory": 0,
      "DataDiskStorageClass": "",
      "DataDiskSize": 0,
      "CustomLabels": [
        {
          "Key": "department",
          "Value": "IT"
        }
      ],
      "CustomAnnotations": [
        {
          "Key": "department",
          "Value": "IT"
        }
      ],
      "MountHostCgroup": true,
      "NodeAffinity": "",
      "PodAntiAffinity": "",
      "PodAffinity": "",
      "PreStartCommand": [
        ""
      ],
      "Pvcs": [
        {
          "DataDiskStorageClass": "",
          "DataDiskSize": 0,
          "Path": "",
          "Name": ""
        }
      ],
      "Volumes": [
        {
          "Name": "",
          "Path": "",
          "Type": ""
        }
      ],
      "VolumeMounts": [
        {
          "Name": "",
          "Path": ""
        }
      ]
    },
    "IaaSType": "",
    "PrivatePoolOptions": {
      "PrivatePoolIds": [
        ""
      ],
      "MatchCriteria": "Open"
    },
    "Status": "CREATED"
  },
  "RequestId": "DD6B1B2A-5837-5237-ABE4-FF0C8944****"
}

错误码

HTTP status code

错误码

错误信息

描述

400 ConflictParameters Parameters that must not be used together. %s 多个参数间存在冲突。
400 IncompleteSignature The request signature is invalid. API请求签名不合法。
400 InvalidAction The action %s requested is invalid. 不合法的Action。
400 InvalidParameter The specified parameter %s is not valid. 参数错误。
400 InvalidParameterValue The input parameter %s is invalid or out of range. 参数值超出范围。
400 MissingAction The action %s requested is missing. 缺少Action参数
400 MissingParameter The input parameter %s that is mandatory for processing this request is not supplied. 参数缺失。
400 NotAuthorized You do not have permission to perform this action. %s 没有权限。
400 ThrottlingException The request was denied due to request throttling. %s 限流。
500 InternalError The request processing has failed due to some unknown error, exception or failure. 内部错误。
404 ResourceNotFound The resource not found by %s. 请求的资源未找到。
503 ServiceFailure The request has failed due to a temporary failure of %s service. 依赖的阿里云其他服务不可用。
503 ServiceUnavailable The request has failed due to a temporary failure of the server. 请求超时或者服务不可用。

访问错误中心查看更多错误码。

变更历史

更多信息,参考变更详情