a76c344042
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3.3 KiB
3.3 KiB
Getting Started With Hive JDBC
How to install JDBC driver
Kyuubi JDBC driver is fully compatible with the 2.3.* version of hive JDBC driver, so we reuse hive JDBC driver to connect to Kyuubi server.
Add repository to your maven configuration file which may reside in $MAVEN_HOME/conf/settings.xml.
<repositories>
<repository>
<id>central maven repo</id>
<name>central maven repo https</name>
<url>https://repo.maven.apache.org/maven2</url>
</repository>
<repositories>
You can add below dependency to your pom.xml file in your application.
<!-- https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc -->
<dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-jdbc</artifactId>
<version>2.3.7</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<!-- keep consistent with the build hadoop version -->
<version>2.7.4</version>
</dependency>
Use JDBC driver with kerberos
The below java code is using a keytab file to login and connect to Kyuubi server by JDBC.
package org.apache.kyuubi.examples;
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
import java.sql.*;
import org.apache.hadoop.security.UserGroupInformation;
public class JDBCTest {
private static String driverName = "org.apache.hive.jdbc.HiveDriver";
private static String kyuubiJdbcUrl = "jdbc:hive2://localhost:10009/default;";
public static void main(String[] args) throws ClassNotFoundException, SQLException {
String principal = args[0]; // kerberos principal
String keytab = args[1]; // keytab file location
Configuration configuration = new Configuration();
configuration.set(HADOOP_SECURITY_AUTHENTICATION, "kerberos");
UserGroupInformation.setConfiguration(configuration);
UserGroupInformation ugi = UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab);
Class.forName(driverName);
Connection conn = ugi.doAs(new PrivilegedExceptionAction<Connection>(){
public Connection run() throws SQLException {
return DriverManager.getConnection(kyuubiJdbcUrl);
}
});
Statement st = conn.createStatement();
ResultSet res = st.executeQuery("show databases");
while (res.next()) {
System.out.println(res.getString(1));
}
res.close();
st.close();
conn.close();
}
}