无法连接谷歌存储文件使用GSC连接器从火花

Question

我写了一个火花作业在我的本地机器，从谷歌云存储读取文件使用谷歌hadoop连接器，如gs://storage.googleapis.com/https://cloud.google.com/dataproc/docs/connectors/cloud-storage

我已经设置了具有计算引擎和存储权限的服务号。我的火花配置和代码是

SparkConf conf = new SparkConf();
conf.setAppName("SparkAPp").setMaster("local");
conf.set("google.cloud.auth.service.account.enable", "true");
conf.set("google.cloud.auth.service.account.email", "[e-mail]");
conf.set("google.cloud.auth.service.account.keyfile", "/root/Documents/xxx-compute-e71ddbafd13e.p12");
conf.set("fs.gs.project.id", "xxx-990711");
conf.set("fs.gs.impl", "com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem");
conf.set("fs.AbstractFileSystem.gs.impl", "com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem"); 

SparkContext sparkContext = new SparkContext(conf);
JavaRDD<String> data = sparkContext.textFile("gs://storage.googleapis.com/xxx/xxx.txt", 0).toJavaRDD();
data.foreach(line -> System.out.println(line));

我已经设置了环境变量也称为GOOGLE_APPLICATION_CREDENTIALS指向关键文件。我尝试使用两个关键文件，即json

java.net.UnknownHostException: metadata
java.io.IOException: Error getting access token from metadata server at: http://metadata/computeMetadata/v1/instance/service-accounts/default/token
        at com.google.cloud.hadoop.util.CredentialFactory.getCredentialFromMetadataServiceAccount(CredentialFactory.java:208)
        at com.google.cloud.hadoop.util.CredentialConfiguration.getCredential(CredentialConfiguration.java:70)

我使用java 8、spark 2.2.0依赖项和gcs connector 1.6.1从eclipse运行我的作业。hadoop2。我只需要使用服务帐户而不是OAuth机制进行连接。

提前谢谢

Answer 1

你在本地试用吗？如果是，则需要将环境变量GOOGLE\u APPLICATION\u CREDENTIALS设置为键。json或将其设置为HadoopConfiguration，而不是将其设置为SparkConf，如：

    Configuration hadoopConfiguration = sparkContext.hadoopConfiguration();
    hadoopConfiguration.set("google.cloud.auth.service.account.enable", true);
    hadoopConfiguration.set("google.cloud.auth.service.account.email", "[e-mail]");
    hadoopConfiguration.set("google.cloud.auth.service.account.keyfile", "/root/Documents/xxx-compute-e71ddbafd13e.p12");