Starting, Stopping, and Using HiveServer2 in CDH
HiveServer2 is an improved version of HiveServer that supports Kerberos authentication and multi-client concurrency. You can access HiveServer2 by using the Beeline client.
To start HiveServer2:
$ sudo service hive-server2 start
To stop HiveServer2:
$ sudo service hive-server2 stop
To confirm that HiveServer2 is working, start the beeline CLI and use it to execute a SHOW TABLES query on the HiveServer2 process:
$ /usr/lib/hive/bin/beeline beeline> !connect jdbc:hive2://localhost:10000 username password org.apache.hive.jdbc.HiveDriver 0: jdbc:hive2://localhost:10000> SHOW TABLES; show tables; +-----------+ | tab_name | +-----------+ +-----------+ No rows selected (0.238 seconds) 0: jdbc:hive2://localhost:10000>
Using the Beeline CLI
Beeline is the CLI (command-line interface) developed specifically to interact with HiveServer2. It is based on the SQLLine CLI written by Marc Prud'hommeaux.
Use the following commands to start beeline and connect to a running HiveServer2 process. In this example the HiveServer2 process is running on localhost at port 10000:
$ beeline beeline> !connect jdbc:hive2://localhost:10000 username password org.apache.hive.jdbc.HiveDriver 0: jdbc:hive2://localhost:10000>
- Beeline does not show query logs like the Hive CLI
- When adding JARs to HiveServer2 with Beeline, the JARs must be on the HiveServer2 host.
At present the best source for documentation on Beeline is the original SQLLine documentation.