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请问一下用spark跨集群的访问开启了kerberos的hbase #33

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@ighack

请问一下。如果想把集群B的hbase的数据读取到集群A中该怎么操作啊

我想到的是

sparkSession.sparkContext.addFile("hdfs://nameservice1/krb5B.conf")
sparkSession.sparkContext.addFile("hdfs://nameservice/clusterB.keytab")

val krb5Path = SparkFiles.get("krb5B.conf")
val principal = config.getJSONObject("auth").getString("principal")
val keytab = SparkFiles.get("clusterB.keytab")

System.setProperty("java.security.krb5.conf", krb5Path);
Configuration conf = new Configuration();
conf.set("hadoop.security.authentication", "Kerberos");
UserGroupInformation.setConfiguration(conf);
UserGroupInformation.loginUserFromKeytab(principal, keytabPath)

在读取集群B的之前先loginUserFromKeytab一下。这里使用集群B的配制
在读取成一个dataframe之后。在用集群A的配制loginUserFromKeytab一下。

不知道这样是否可行

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