谷歌DataProc API火花集群与C＃

问题描述

我有Big Query中的数据我想在Spark集群中运行分析。每个文档如果我实例化一个Spark集群，它应该带有一个Big Query连接器。我正在寻找任何示例代码来执行此操作，在中找到。找不到任何C＃示例。还发现了一些在DataProc API中的函数nuget包中。

寻找一个样本，使用c＃在Google云中启动一个Spark集群。 安装Google.Apis.Dataproc.v1版本1.10.0.40（或更高版本）后：

以下是用于创建Dataproc集群的快速示例控制台应用程序在C＃中：

使用Google.Apis.Auth.OAuth2;

  
使用Google.Apis.Services; 
使用Google.Apis.Dataproc.v1; 
使用Google.Apis.Dataproc.v1.Data; 
 
使用System; 
使用System.Threading; 
 
名称空间DataprocSample {
类程序
 {
 static void Main（string [] args）
 {
 string project =您的项目这里; 
字符串dataprocGlobalRegion =global; 
 string zone =us-east1-b; 
 string machineType =n1-standard-4; 
 string clusterName =sample-cluster; 
 int numWorkers = 2; 
 //请参阅应用程序默认凭证的文档：
 // https://developers.google.com/identity/protocols/application-default-credentials 
 //通常，如果像自己一样运行，'gcloud auth login'就足够了。 
 //如果从虚拟机运行，请确保虚拟机已启动，以便服务帐户具有
 // CLOUD_PLATFORM范围。 
 GoogleCredential凭证= GoogleCredential.GetApplicationDefaultAsync（）。 
 if（credential.IsCreateScopedRequired）
 {
 credential = credential.CreateScoped（new [] {DataprocService.Scope.CloudPlatform}）; 
} 
 
 DataprocService service = new DataprocService（
 new BaseClientService.Initializer（）
 {
 HttpClientInitializer =凭证，
 ApplicationName =Dataproc示例，
}）; 
 
 //创建一个新的集群：
 Cluster newCluster = new Cluster 
 {
 ClusterName = clusterName，
 Config = new ClusterConfig 
 { 
 GceClusterConfig = new GceClusterConfig 
 {
 ZoneUri = String.Format（
https://www.googleapis.com/compute/v1/projects/{0}/zones/ {1}，
 project，zone），
}，
 MasterConfig = new InstanceGroupConfig 
 {
 NumInstances = 1，
 MachineTypeUri = String.Format （
https://www.googleapis.com/compute/v1/projects/{0}/zones/{1}/machineTypes/{2}，
 project，zone，machineType）， 
}，
 WorkerConfig = n ew InstanceGroupConfig 
 {
 NumInstances = numWorkers，
 MachineTypeUri = String.Format（
https://www.googleapis.com/compute/v1/projects/{0}/ zone / {1} / machineTypes / {2}，
 project，zone，machineType），
}，
}，
}; 
操作createOperation = 
 service.Projects.Regions.Clusters.Create（newCluster，project，dataprocGlobalRegion）.Execute（）; 
 //轮询操作：
 while（！IsDone（createOperation））
 {
 Console.WriteLine（Polling operation {0}，createOperation.Name）; 
 createOperation = 
 service.Projects.Regions.Operations.Get（createOperation.Name）.Execute（）; 
 Thread.Sleep（1000）; 
} 
 
 Console.WriteLine（完成创建集群{0}，newCluster.ClusterName）; 
} 
 static bool IsDone（Operation op）
 {
 return op.Done ??假; 
} 
} 
} 
  

I have data in Big Query I want to run analytics on in a spark cluster. Per documentation if I instantiate a spark cluster it should come with a Big Query connector. I was looking for any sample code to do this, found one in pyspark. Could not find any c# examples. Also found some documentation on the functions in DataProc APIs nuget package.

Looking for a sample to start a spark cluster in Google cloud using c#.

解决方案

After installing Google.Apis.Dataproc.v1 version 1.10.0.40 (or higher):

Below is a quick sample console app for creating a Dataproc cluster in C#:

using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using Google.Apis.Dataproc.v1;
using Google.Apis.Dataproc.v1.Data;

using System;
using System.Threading;

namespace DataprocSample {
    class Program
    {
        static void Main(string[] args)
        {
            string project = "YOUR PROJECT HERE";
            string dataprocGlobalRegion = "global";
            string zone = "us-east1-b";
            string machineType = "n1-standard-4";
            string clusterName = "sample-cluster";
            int numWorkers = 2;
            // See the docs for Application Default Credentials:
            // https://developers.google.com/identity/protocols/application-default-credentials
            // In general, a previous 'gcloud auth login' will suffice if running as yourself.
            // If running from a VM, ensure the VM was started such that the service account has
            // the CLOUD_PLATFORM scope.
            GoogleCredential credential = GoogleCredential.GetApplicationDefaultAsync().Result;
            if (credential.IsCreateScopedRequired)
            {
                credential = credential.CreateScoped(new[] { DataprocService.Scope.CloudPlatform });
            }

            DataprocService service = new DataprocService(
                new BaseClientService.Initializer()
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Dataproc Sample",
                });

            // Create a new cluster:
            Cluster newCluster = new Cluster
            {
                ClusterName = clusterName,
                Config = new ClusterConfig
                {
                    GceClusterConfig = new GceClusterConfig
                    {
                        ZoneUri = String.Format(
                            "https://www.googleapis.com/compute/v1/projects/{0}/zones/{1}",
                            project, zone),
                    },
                    MasterConfig = new InstanceGroupConfig
                    {
                        NumInstances = 1,
                        MachineTypeUri = String.Format(
                            "https://www.googleapis.com/compute/v1/projects/{0}/zones/{1}/machineTypes/{2}",
                            project, zone, machineType),
                    },
                    WorkerConfig = new InstanceGroupConfig
                    {
                        NumInstances = numWorkers,
                        MachineTypeUri = String.Format(
                            "https://www.googleapis.com/compute/v1/projects/{0}/zones/{1}/machineTypes/{2}",
                            project, zone, machineType),
                    },
                },
            };
            Operation createOperation =
                service.Projects.Regions.Clusters.Create(newCluster, project, dataprocGlobalRegion).Execute();
            // Poll the operation:
            while (!IsDone(createOperation))
            {
                Console.WriteLine("Polling operation {0}", createOperation.Name);
                createOperation =
                    service.Projects.Regions.Operations.Get(createOperation.Name).Execute();
                Thread.Sleep(1000);
            }

            Console.WriteLine("Done creating cluster {0}", newCluster.ClusterName);
        }
        static bool IsDone(Operation op)
        {
            return op.Done ?? false;
        }
    }
 }

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