Using Hue with Oracle

To set up Hue to use an Oracle database:

Create a new user in Oracle and grant privileges to manage this database using the Oracle database admin utility:

# sqlplus sys/root as sysdba
CREATE USER $HUEUSER IDENTIFIED BY $HUEPASSWORD default tablespace “USERS”temporary tablespace “TEMP”;
GRANT CREATE TABLE, CREATE SEQUENCE, CREATE PROCEDURE, CREATE TRIGGER, CREATE SESSION,
UNLIMITED TABLESPACE TO $HUEUSER;

Where $HUEUSER is the Hue user name and $HUEPASSWORD is the Hue user password.

Open the /etc/hue/conf/hue.ini file and edit the [[database]] section (modify for your Oracle setup).

[[database]]
engine=oracle
host=$DATABASEIPADDRESSORHOSTNAME
port=$PORT
user=$HUEUSER
password=$HUEPASSWORD
name=$DBNAME

Install the Oracle instant clients and configure cx_Oracle.
1. Download and extract the instantclient-basic-linux and instantclient-sdk-linux Oracle clients from the Oracle download site.
2. Set your ORACLE_HOME environment variable to point to the newly downloaded client libraries.
3. Set your LD_LIBRARY_PATH environment variable to include ORACLE_HOME.
4. Create a symbolic link for library expected by cx_Oracle:
```
ln -sf libclntsh.so.11.1 libclntsh.so
```
5. Install the cx_Oracle python module.
6. Confirm that the python-setuptools are present on the Hue node, for example:
```
rpm -qa | grep python-setuptools
```
  If the phython-setuptools are not present, install them, using the following command:
```
yum install python-setuptools
```
7. Install the cx_Oracle module:
```
/usr/lib/hue/build/env/bin/pip install cx_Oracle
```
8. Upgrade Django south:
```
/usr/lib/hue/build/env/bin/pip install south --upgrade
```
Synchronize Hue with the external database to create the schema and load the data:
```
cd /usr/lib/hue
source build/env/bin/activate
hue syncdb --noinput
hue migrate
deactivate
```
Populate /usr/lib64 with Oracle instant-client library files.
Copy the *.so.* files from oracle instantclient directory path to /usr/lib64.

​Using Hue with Oracle

Using Hue with Oracle