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 2.1. Using Hive with Oracle

To set up Oracle for use with Hive:

  1. On the Ambari Server host, stage the appropriate JDBC driver file for later deployment.

    1. Download the Oracle JDBC (OJDBC) driver from http://www.oracle.com/technetwork/database/features/jdbc/index-091264.html.

    2. For Oracle Database 11g: select Oracle Database 11g Release 2 drivers > ojdbc6.jar.

    3. For Oracle Database 12c: select Oracle Database 12c Release 1 drivers > ojdbc7.jar.

    4. Make sure the .jar file has the appropriate permissions. For example:

      chmod 644 ojdbc7.jar

    5. Execute the following command, adding the path to the downloaded .jar file:

      ambari-server setup --jdbc-db=oracle --jdbc-driver=/path/to/downloaded/ojdbc7.jar

  2. Create a user for Hive and grant it permissions.

    • Using the Oracle database admin utility:

      # sqlplus sys/root as sysdba

      CREATE USER <HIVEUSER> IDENTIFIED BY <HIVEPASSWORD>;

      GRANT SELECT_CATALOG_ROLE TO <HIVEUSER>;

      GRANT CONNECT, RESOURCE TO <HIVEUSER>;

      QUIT;

    • Where <HIVEUSER> is the Hive user name and <HIVEPASSWORD> is the Hive user password.

  3. Load the Hive database schema.

    • For HDP 2.2 or later Stacks

      [Important]Important

      Ambari sets up the Hive Metastore database schema automatically.

      You do not need to pre-load the Hive Metastore database schema into your Oracle database for a HDP 2.2 Stack.

    • For a HDP 2.1 Stack

      You must pre-load the Hive database schema into your Oracle database using the schema script, as follows: sqlplus <HIVEUSER>/<HIVEPASSWORD> < hive-schema-0.13.0.oracle.sql

      Find the hive-schema-0.13.0.oracle.sql file in the /var/lib/ambari-server/resources/stacks/HDP/2.1/services/HIVE/etc/ directory of the Ambari Server host after you have installed Ambari Server.

    • For a HDP 2.0 Stack

      You must pre-load the Hive database schema into your Oracle database using the schema script, as follows: sqlplus <HIVEUSER>/<HIVEPASSWORD> < hive-schema-0.12.0.oracle.sql

      Find the hive-schema-0.12.0.oracle.sql file in the /var/lib/ambari-server/resources/stacks/HDP/2.0.6/services/HIVE/etc/ directory of the Ambari Server host after you have installed Ambari Server.

    • For a HDP 1.3 Stack

      You must pre-load the Hive database schema into your Oracle database using the schema script, as follows: sqlplus <HIVEUSER>/<HIVEPASSWORD> < hive-schema-0.10.0.oracle.sql

      Find the hive-schema-0.10.0.oracle.sql file in the /var/lib/ambari-server/resources/stacks/HDP/1.3.2/services/HIVE/etc/ directory of the Ambari Server host after you have installed Ambari Server.

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