HBase（使用kerberos）服务请求客户端程序

最新推荐文章于 2025-06-13 20:16:29 发布

wk022

最新推荐文章于 2025-06-13 20:16:29 发布

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本文链接：https://blog.youkuaiyun.com/wk022/article/details/50948523

本文提供了一个使用Kerberos认证访问HBase的Java示例程序，通过配置HBase客户端连接并验证权限，演示了如何从指定表中读取所有记录。

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public class TestHbaseKerberos {

	private static final String HBASE_MASTER_PRINCIPAL = "hbase/_HOST@EXAMPLE.COM";
	private static final String HBASE_RS_PRINCIPAL = "hbase/_HOST@EXAMPLE.COM";

	public static void main(String[] args) throws Exception {
		final String user = "hbase-xxx@EXAMPLE.COM";
		final String keyPath = "hbase.headless.keytab";

		Configuration conf = new Configuration();
		// 与hbase/conf/hbase-site.xml中hbase.zookeeper.quorum配置的值相同
		conf.set("hbase.zookeeper.quorum", "xxx.xxx.xxx.xxx");
		// 与hbase/conf/hbase-site.xml中hbase.zookeeper.property.clientPort配置的值相同
		conf.set("hbase.zookeeper.property.clientPort", "2181");
		conf.set(HConstants.ZOOKEEPER_ZNODE_PARENT, "/hbase-secure");
		conf.set("hbase.security.authentication", "kerberos");
		conf.set("hadoop.security.authentication", "kerberos");
		conf.set("hbase.master.kerberos.principal", HBASE_MASTER_PRINCIPAL);
		conf.set("hbase.regionserver.kerberos.principal", HBASE_RS_PRINCIPAL);

		UserGroupInformation.setConfiguration(conf);
		UserGroupInformation.loginUserFromKeytab(user, keyPath);
		HBaseOperation hbase = new HBaseOperation(conf);

		// 2.4查询整个Table
		List<Result> list = null;
		list = hbase.getAllRecord("ambarismoketest");
		Iterator<Result> it = list.iterator();

		while(it.hasNext()) {
			Result rs2 = it.next();
			for(KeyValue kv: rs2.raw()) {
				System.out.print("row key is : " + new String(kv.getRow()));
				System.out.print("family is  : " + new String(kv.getFamily()));
				System.out.print("qualifier is:" + new String(kv.getQualifier()));
				System.out.print("timestamp is:" + kv.getTimestamp());
				System.out.println("Value  is  : " + new String(kv.getValue()));
			}
		}
	}
}