Cloudera Enterprise 6.0.x | Other versions

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.

  Warning:

If you are running the metastore in Remote mode, you must start the Hive metastore before you start HiveServer2. HiveServer2 tries to communicate with the metastore as part of its initialization bootstrap. If it is unable to do this, it fails with an error.

Note that because of concurrency and security issues, HiveServer1 was deprecated in CDH 5.3 and has been removed from CDH 6.

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.

  Note:

Cloudera does not currently support using the Thrift HTTP protocol to connect Beeline to HiveServer2 (meaning that you cannot set hive.server2.transport.mode=http). Use the Thrift TCP protocol.

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>
  Note:

If you are using HiveServer2 on a cluster that does not have Kerberos security enabled, then the password is arbitrary in the command for starting Beeline.

If you are using HiveServer2 on a cluster that does have Kerberos security enabled, see HiveServer2 Security Configuration.

There are some Hive CLI features that are not available with Beeline. For example:
  • 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.

Page generated July 25, 2018.