JDBC Service configuration

1 Hive JDBC Service Setup

1.1 JDBC Service configuration

Edit ~/hive/conf/hive-site.xml file and add parameters to configure IP and port to bind JDBC Server service:

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~/hive/conf/hive-site.xml

<property>
    <name>hive.server2.thrift.bind.host</name>
    <value>hadoop1</value>
    </property>
<property>
    <name>hive.server2.thrift.port</name>
    <value>10000</value>
</property>

1.2 JDBC Security

By default HiveServer2 performs the query processing as the user who submitted the query. But if the hive.server2.enable.doAs parameter is set to false, the query will run as the user that the hiveserver2 process runs as.

This allow to overide security permissions and execute JDBC operations without security setup.

Edit file ~/hive/conf/hive-site.xml and change parameter hive.server2.enable.doAs to false:

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~/hive/conf/hive-site.xml

<property>
    <name>hive.server2.enable.doAs</name>
    <value>false</value>
    <description>
      Setting this property to true will have HiveServer2 execute
      Hive operations as the user making the calls to it.
    </description>
  </property>

1.3 Start JDBC Server Service

To start JDBC service you should start hiveserver2 service. No other hive client should be running in same machine to allow hiveserver2 service to run.

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$ hive --service hiveserver2

To run service in background, you can start it in background mode:

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$ nohup hive --service hiveserver2  &

1.3.1 Auto Start-Stop using systemd

You can create a systemd service creating file: /etc/systemd/system/hive.service

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[Unit]
Description=Hive SQL Server 2 for Hadoop
Requires=network-online.target
After=hadoop.service

[Service]
User=hadoop
Group=hadoop
Type=forking
WorkingDirectory=/home/hadoop
ExecStart=/bin/sh -a -c 'source /home/hadoop/.bash_profile && cd /home/hadoop && (hive --service hiveserver2 &)'
Environment=JAVA_HOME=/usr/lib/jvm/java-1.8.0
Environment=HIVE_HOME=/home/hadoop/hive
#TimeoutStartSec=2min
Restart=on-failure
#PIDFile=/tmp/hadoop-hive-server2.pid

[Install]
WantedBy=multi-user.target

1.4 JDBC Client

To execute a JDBC client to test JDBC connection, you can use beeline client

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$ beeline -u jdbc:hive2://localhost:10000
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/hive/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Connecting to jdbc:hive2://localhost:10000
Connected to: Apache Hive (version 2.3.2)
Driver: Hive JDBC (version 2.3.2)
Transaction isolation: TRANSACTION_REPEATABLE_READ
Beeline version 2.3.2 by Apache Hive
0: jdbc:hive2://localhost:10000>

To check JDBC connection works properly, you can get JDBC connection info by executing: !dbinfo in beeline:

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0: jdbc:hive2://localhost:10000> !dbinfo ;
allProceduresAreCallable                          Error: Method not supported (state=,code=0)
allTablesAreSelectable                            true
dataDefinitionCausesTransactionCommit             Error: Method not supported (state=,code=0)
dataDefinitionIgnoredInTransactions               Error: Method not supported (state=,code=0)
doesMaxRowSizeIncludeBlobs                        Error: Method not supported (state=,code=0)
getCatalogSeparator                               .
getCatalogTerm                                    instance
getDatabaseProductName                            Apache Hive
getDatabaseProductVersion                         2.3.2
getDefaultTransactionIsolation                    0
getDriverMajorVersion                             2
getDriverMinorVersion                             3
getDriverName                                     Hive JDBC
getDriverVersion                                  2.3.2
getExtraNameCharacters                            
getIdentifierQuoteString                           
getMaxBinaryLiteralLength                         Error: Method not supported (state=,code=0)
getMaxCatalogNameLength                           Error: Method not supported (state=,code=0)
getMaxCharLiteralLength                           Error: Method not supported (state=,code=0)
getMaxColumnNameLength                            128
getMaxColumnsInGroupBy                            Error: Method not supported (state=,code=0)
getMaxColumnsInIndex                              Error: Method not supported (state=,code=0)
getMaxColumnsInOrderBy                            Error: Method not supported (state=,code=0)
getMaxColumnsInSelect                             Error: Method not supported (state=,code=0)
getMaxColumnsInTable                              Error: Method not supported (state=,code=0)
getMaxConnections                                 Error: Method not supported (state=,code=0)
getMaxCursorNameLength                            Error: Method not supported (state=,code=0)
getMaxIndexLength                                 Error: Method not supported (state=,code=0)
getMaxProcedureNameLength                         Error: Method not supported (state=,code=0)
getMaxRowSize                                     Error: Method not supported (state=,code=0)
getMaxSchemaNameLength                            Error: Method not supported (state=,code=0)
getMaxStatementLength                             Error: Method not supported (state=,code=0)
getMaxStatements                                  Error: Method not supported (state=,code=0)
getMaxTableNameLength                             Error: Method not supported (state=,code=0)
getMaxTablesInSelect                              Error: Method not supported (state=,code=0)
getMaxUserNameLength                              Error: Method not supported (state=,code=0)
getNumericFunctions                               
getProcedureTerm                                  UDF
getSchemaTerm                                     database
getSearchStringEscape                             \
getSQLKeywords                                    Error: Method not supported (state=,code=0)
....