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。
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，用背景高亮的方式表示。
- 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 |
|
| 无 |
请求参数
| 名称 | 类型 | 必填 | 描述 | 示例值 |
|---|---|---|---|---|
| RegionId | string | 是 | 区域 ID。 | cn-hangzhou |
| ClusterId | string | 是 | 集群 ID。 | c-b933c5aac8fe**** |
| NodeGroupId | string | 是 | 节点组 ID。 | ng-869471354ecd**** |
返回参数
示例
正常返回示例
JSON格式
{
"NodeGroup": {
"ZoneId": "cn-hangzhou",
"NodeGroupId": "ng-869471354ecd****",
"NodeGroupName": "core-1",
"NodeGroupType": "MASTER",
"RunningNodeCount": 3,
"InstanceTypes": [
"ecs.g7.2xlarge"
],
"PaymentType": "Subscription",
"DataDisks": [
{
"Category": "cloud_essd",
"Size": 80,
"PerformanceLevel": "PL1",
"Count": 5
}
],
"SystemDisk": {
"Category": "cloud_essd",
"Size": 60,
"PerformanceLevel": "PL1",
"Count": 1
},
"NodeGroupState": "RESIZING",
"Status": "CREATED",
"AdditionalSecurityGroupIds": [
""
],
"WithPublicIp": true,
"VSwitchIds": [
"vsw-bp1opd2qejvhsabfe****"
],
"SpotStrategy": "NoSpot",
"SpotBidPrices": [
{
"InstanceType": "ecs.g7.2xlarge",
"BidPrice": 1000
}
],
"StateChangeReason": {
"Code": "UserRequest",
"Message": "The instance type is required."
},
"MinimalNodeCount": 0,
"MaximalNodeCount": 200,
"GracefulShutdown": false,
"SpotInstanceRemedy": false,
"NodeResizeStrategy": "PRIORITY",
"CostOptimizedConfig": {
"OnDemandBaseCapacity": 80,
"OnDemandPercentageAboveBaseCapacity": 80,
"SpotInstancePools": 2
},
"DeploymentSetStrategy": "NONE",
"AutoCompensateState": false,
"ExtraAttributes": {
"key": "true"
},
"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": ""
},
"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。 |
| 404 | ResourceNotFound | The resource not found by %s. | 请求的资源未找到。 |
| 500 | InternalError | The request processing has failed due to some unknown error, exception or failure. | 内部错误。 |
| 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
| 变更时间 | 变更内容概要 | 操作 |
|---|---|---|
| 2023-07-06 | API 内部配置变更，不影响调用 | 查看变更详情 |