69d625a1be
### _Why are the changes needed?_ - to consolidate styles in markdown files from manual written or auto-generated - apply markdown formatting rules with flexmark from [spotless-maven-plugin](https://github.com/diffplug/spotless/tree/main/plugin-maven#markdown) to *.md files in `/docs` - use `flexmark` to format markdown generation in `TestUtils` of common module used by `AllKyuubiConfiguration` and `KyuubiDefinedFunctionSuite`, as the same way in `FlexmarkFormatterFunc ` of `spotless-maven-plugin` using with `COMMONMARK` as `FORMATTER_EMULATION_PROFILE` (https://github.com/diffplug/spotless/blob/maven/2.30.0/lib/src/flexmark/java/com/diffplug/spotless/glue/markdown/FlexmarkFormatterFunc.java) - using `flexmark` of` 0.62.2`, as the last version requiring Java 8+ (checked from pom file and bytecode version) ``` <markdown> <includes> <include>docs/**/*.md</include> </includes> <flexmark></flexmark> </markdown> ``` - Changes applied to markdown doc files, - no style change or breakings in built docs by `make html` - removal all the first blank in licences and comments to conform markdown style rules - tables regenerated by flexmark following as in [GitHub Flavored Markdown](https://help.github.com/articles/organizing-information-with-tables/) (https://github.com/vsch/flexmark-java/wiki/Extensions#tables) ### _How was this patch tested?_ - [x] regenerate docs using `make html` successfully and check all the markdown pages available - [x] regenerate `settings.md` and `functions.md` by `AllKyuubiConfiguration` and `KyuubiDefinedFunctionSuite`, and pass the checks by both themselves and spotless check via `dev/reformat` - [x] [Run test](https://kyuubi.readthedocs.io/en/master/develop_tools/testing.html#running-tests) locally before make a pull request Closes #4200 from bowenliang123/markdown-formatting. Closes #4200 1eeafce4 [liangbowen] revert minor changes in AllKyuubiConfiguration 4f892857 [liangbowen] use flexmark in markdown doc generation 8c978abd [liangbowen] changes on markdown files a9190556 [liangbowen] apply markdown formatting rules with `spotless-maven-plugin` to markdown files with in `/docs` Authored-by: liangbowen <liangbowen@gf.com.cn> Signed-off-by: liangbowen <liangbowen@gf.com.cn>
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();
}
}