创建集群

如何创建 Dataproc 集群

要求：

  • 名称：集群名称必须以小写字母开头，后面最多可跟 51 个小写字母、数字和连字符，但不能以连字符结尾。

  • 集群区域：您必须为集群指定一个 Compute Engine 区域（例如 us-east1 或 europe-west1），以便在该区域内隔离集群资源（例如存储在 Cloud Storage 中的虚拟机实例和集群元数据）。

    • 如需详细了解区域端点，请参阅区域端点。
    • 如需了解如何选择区域，请参阅可用的区域和可用区。您还可以运行 gcloud compute regions list 命令来显示可用区域的列表。

  • 连接：Dataproc 集群中的 Compute Engine 虚拟机实例（包含主实例和工作器虚拟机）需要完整的内部 IP 网络跨连接。default VPC 网络提供此连接（请参阅 Dataproc 集群网络配置）。

gcloud

如需通过命令行创建 Dataproc 集群，请在终端窗口或 Cloud Shell 中本地运行 gcloud dataproc clusters create 命令。

gcloud dataproc clusters create CLUSTER_NAME \
    --region=REGION

该命令会创建一个集群，其中包含您的主实例和工作器虚拟机实例的默认 Dataproc 服务设置、磁盘大小和类型、网络类型、部署集群的区域和可用区以及其他集群设置。要了解如何使用命令行标记自定义集群设置，请参阅 gcloud dataproc clusters create 命令。

使用 YAML 文件创建集群

  1. 运行以下 gcloud 命令将现有 Dataproc 集群的配置导出到 cluster.yaml 文件。
    gcloud dataproc clusters export EXISTING_CLUSTER_NAME \
    --region=REGION \
    --destination=cluster.yaml
  2. 通过导入 YAML 文件配置来创建新集群。 
    gcloud dataproc clusters import NEW_CLUSTER_NAME \
    --region=REGION \
    --source=cluster.yaml

注意：在导出操作期间，特定于集群的字段（例如集群名称、仅限输出的字段和自动应用的标签）会被滤除。在用于创建集群的导入的 YAML 文件中，不允许使用这些字段。

REST

本部分介绍如何创建采用所需值和默认配置（1 个主节点，2 个工作器节点）的集群。

在使用任何请求数据之前，请先进行以下替换：

  • project-id：Google Cloud 项目 ID
  • region：集群地区
  • clusterName：集群名称

HTTP 方法和网址： 

POST https://dataproc.googleapis.com/v1/projects/project-id/regions/region/clusters

请求 JSON 正文：

{
  "clusterName": "cluster-name",
  "config": {}
}

如需发送您的请求，请展开以下选项之一：

您应该收到类似以下内容的 JSON 响应：

{
"name": "projects/project-id/regions/region/operations/b5706e31......",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.dataproc.v1.ClusterOperationMetadata",
    "clusterName": "cluster-name",
    "clusterUuid": "5fe882b2-...",
    "status": {
      "state": "PENDING",
      "innerState": "PENDING",
      "stateStartTime": "2019-11-21T00:37:56.220Z"
    },
    "operationType": "CREATE",
    "description": "Create cluster with 2 workers",
    "warnings": [
      "For PD-Standard without local SSDs, we strongly recommend provisioning 1TB ...""
    ]
  }
}

控制台

在浏览器中打开 Google Cloud 控制台中的 Dataproc 创建集群页面，然后在在 Compute Engine 上创建 Dataproc 集群页面上的 Compute Engine 行中点击创建。选择“设置集群”面板，其中的字段填充默认值。您可以选择每个面板，然后确认或更改默认值以自定义您的集群。

单击创建以创建集群。集群名称会显示在集群页面中，预配集群后，其状态会更新为“正在运行”。点击集群名称可打开集群详情页面，您可以在其中检查集群的作业、实例和配置设置，并连接到集群上运行的网页界面。

Go

  1. 安装客户端库。

  2. 设置应用默认凭据。

  3. 运行代码。 
    import (
	"context"
	"fmt"
	"io"

	dataproc "cloud.google.com/go/dataproc/apiv1"
	"cloud.google.com/go/dataproc/apiv1/dataprocpb"
	"google.golang.org/api/option"
)

func createCluster(w io.Writer, projectID, region, clusterName string) error {
	// projectID := "your-project-id"
	// region := "us-central1"
	// clusterName := "your-cluster"
	ctx := context.Background()

	// Create the cluster client.
	endpoint := region + "-dataproc.googleapis.com:443"
	clusterClient, err := dataproc.NewClusterControllerClient(ctx, option.WithEndpoint(endpoint))
	if err != nil {
		return fmt.Errorf("dataproc.NewClusterControllerClient: %w", err)
	}
	defer clusterClient.Close()

	// Create the cluster config.
	req := &dataprocpb.CreateClusterRequest{
		ProjectId: projectID,
		Region:    region,
		Cluster: &dataprocpb.Cluster{
			ProjectId:   projectID,
			ClusterName: clusterName,
			Config: &dataprocpb.ClusterConfig{
				MasterConfig: &dataprocpb.InstanceGroupConfig{
					NumInstances:   1,
					MachineTypeUri: "n1-standard-2",
				},
				WorkerConfig: &dataprocpb.InstanceGroupConfig{
					NumInstances:   2,
					MachineTypeUri: "n1-standard-2",
				},
			},
		},
	}

	// Create the cluster.
	op, err := clusterClient.CreateCluster(ctx, req)
	if err != nil {
		return fmt.Errorf("CreateCluster: %w", err)
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		return fmt.Errorf("CreateCluster.Wait: %w", err)
	}

	// Output a success message.
	fmt.Fprintf(w, "Cluster created successfully: %s", resp.ClusterName)
	return nil
}

Java

  1. 安装客户端库。
  2. 设置应用默认凭据。
  3. 运行代码。 
    import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.dataproc.v1.Cluster;
import com.google.cloud.dataproc.v1.ClusterConfig;
import com.google.cloud.dataproc.v1.ClusterControllerClient;
import com.google.cloud.dataproc.v1.ClusterControllerSettings;
import com.google.cloud.dataproc.v1.ClusterOperationMetadata;
import com.google.cloud.dataproc.v1.InstanceGroupConfig;
import java.io.IOException;
import java.util.concurrent.ExecutionException;

public class CreateCluster {

  public static void createCluster() throws IOException, InterruptedException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String region = "your-project-region";
    String clusterName = "your-cluster-name";
    createCluster(projectId, region, clusterName);
  }

  public static void createCluster(String projectId, String region, String clusterName)
      throws IOException, InterruptedException {
    String myEndpoint = String.format("%s-dataproc.googleapis.com:443", region);

    // Configure the settings for the cluster controller client.
    ClusterControllerSettings clusterControllerSettings =
        ClusterControllerSettings.newBuilder().setEndpoint(myEndpoint).build();

    // Create a cluster controller client with the configured settings. The client only needs to be
    // created once and can be reused for multiple requests. Using a try-with-resources
    // closes the client, but this can also be done manually with the .close() method.
    try (ClusterControllerClient clusterControllerClient =
        ClusterControllerClient.create(clusterControllerSettings)) {
      // Configure the settings for our cluster.
      InstanceGroupConfig masterConfig =
          InstanceGroupConfig.newBuilder()
              .setMachineTypeUri("n1-standard-2")
              .setNumInstances(1)
              .build();
      InstanceGroupConfig workerConfig =
          InstanceGroupConfig.newBuilder()
              .setMachineTypeUri("n1-standard-2")
              .setNumInstances(2)
              .build();
      ClusterConfig clusterConfig =
          ClusterConfig.newBuilder()
              .setMasterConfig(masterConfig)
              .setWorkerConfig(workerConfig)
              .build();
      // Create the cluster object with the desired cluster config.
      Cluster cluster =
          Cluster.newBuilder().setClusterName(clusterName).setConfig(clusterConfig).build();

      // Create the Cloud Dataproc cluster.
      OperationFuture<Cluster, ClusterOperationMetadata> createClusterAsyncRequest =
          clusterControllerClient.createClusterAsync(projectId, region, cluster);
      Cluster response = createClusterAsyncRequest.get();

      // Print out a success message.
      System.out.printf("Cluster created successfully: %s", response.getClusterName());

    } catch (ExecutionException e) {
      System.err.println(String.format("Error executing createCluster: %s ", e.getMessage()));
    }
  }
}

Node.js

  1. 安装客户端库。
  2. 设置应用默认凭据。
  3. 运行代码。 
    const dataproc = require('@google-cloud/dataproc');

// TODO(developer): Uncomment and set the following variables
// projectId = 'YOUR_PROJECT_ID'
// region = 'YOUR_CLUSTER_REGION'
// clusterName = 'YOUR_CLUSTER_NAME'

// Create a client with the endpoint set to the desired cluster region
const client = new dataproc.v1.ClusterControllerClient({
  apiEndpoint: `${region}-dataproc.googleapis.com`,
  projectId: projectId,
});

async function createCluster() {
  // Create the cluster config
  const request = {
    projectId: projectId,
    region: region,
    cluster: {
      clusterName: clusterName,
      config: {
        masterConfig: {
          numInstances: 1,
          machineTypeUri: 'n1-standard-2',
        },
        workerConfig: {
          numInstances: 2,
          machineTypeUri: 'n1-standard-2',
        },
      },
    },
  };

  // Create the cluster
  const [operation] = await client.createCluster(request);
  const [response] = await operation.promise();

  // Output a success message
  console.log(`Cluster created successfully: ${response.clusterName}`);

Python

  1. 安装客户端库。

  2. 设置应用默认凭据。

  3. 运行代码。 
    from google.cloud import dataproc_v1 as dataproc

def create_cluster(project_id, region, cluster_name):
    """This sample walks a user through creating a Cloud Dataproc cluster
    using the Python client library.

    Args:
        project_id (string): Project to use for creating resources.
        region (string): Region where the resources should live.
        cluster_name (string): Name to use for creating a cluster.
    """

    # Create a client with the endpoint set to the desired cluster region.
    cluster_client = dataproc.ClusterControllerClient(
        client_options={"api_endpoint": f"{region}-dataproc.googleapis.com:443"}
    )

    # Create the cluster config.
    cluster = {
        "project_id": project_id,
        "cluster_name": cluster_name,
        "config": {
            "master_config": {"num_instances": 1, "machine_type_uri": "n1-standard-2"},
            "worker_config": {"num_instances": 2, "machine_type_uri": "n1-standard-2"},
        },
    }

    # Create the cluster.
    operation = cluster_client.create_cluster(
        request={"project_id": project_id, "region": region, "cluster": cluster}
    )
    result = operation.result()

    # Output a success message.
    print(f"Cluster created successfully: {result.cluster_name}")