Configuring an External Database for Oozie

Install PostgreSQL

See the PostgreSQL documentation to install it.

Create the Oozie User and Oozie Database

For example, using the PostgreSQL psql command-line tool:

$ psql -U postgres
Password for user postgres: *****

postgres=# CREATE ROLE oozie LOGIN ENCRYPTED PASSWORD 'oozie' 
 NOSUPERUSER INHERIT CREATEDB NOCREATEROLE;
CREATE ROLE

postgres=# CREATE DATABASE "oozie" WITH OWNER = oozie
 ENCODING = 'UTF8'
 TABLESPACE = pg_default
 LC_COLLATE = 'en_US.UTF-8'
 LC_CTYPE = 'en_US.UTF-8'
 CONNECTION LIMIT = -1;
CREATE DATABASE

postgres=# \q

Configure PostgreSQL to Accept Network Connections for the Oozie User

1. Edit the postgresql.conf file and set the listen_addresses property to *, to make sure that the PostgreSQL server starts listening on all your network interfaces. Also make sure that the standard_conforming_strings property is set to off.
2. Edit the PostgreSQL data/pg_hba.conf file as follows:

   host    oozie         oozie         0.0.0.0/0             md5

Reload the PostgreSQL Configuration

$ sudo -u postgres pg_ctl reload -s -D /opt/PostgreSQL/8.4/data

Install and Start MariaDB 5.5

See Install and Configure MariaDB for Cloudera Software.

Create the Oozie Database and Oozie MariaDB User

For example, using the MariaDB mysql command-line tool:

$ mysql -u root -p
Enter password:

MariaDB [(none)]> create database oozie default character set utf8;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]>  grant all privileges on oozie.* to 'oozie'@'localhost' identified by 'oozie';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>  grant all privileges on oozie.* to 'oozie'@'%' identified by 'oozie';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye

Add the MariaDB JDBC Driver JAR to Oozie

Cloudera recommends that you use the MySQL JDBC driver for MariaDB. Copy or symbolically link the MySQL JDBC driver JAR to the /var/lib/oozie/ directory.

Install and Start MySQL 5.x

See the MySQL 5.x documentation to install and start it.

Create the Oozie Database and Oozie MySQL User

For example, using the MySQL mysql command-line tool:

$ mysql -u root -p
Enter password:

mysql> create database oozie default character set utf8;
Query OK, 1 row affected (0.00 sec)

mysql>  grant all privileges on oozie.* to 'oozie'@'localhost' identified by 'oozie';
Query OK, 0 rows affected (0.00 sec)

mysql>  grant all privileges on oozie.* to 'oozie'@'%' identified by 'oozie';
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye

Add the MySQL JDBC Driver JAR to Oozie

Install and Start Oracle 11g

Use Oracle's instructions.

Create the Oozie Oracle User and Grant Privileges

The following example uses the Oracle sqlplus command-line tool, and shows the privileges Cloudera recommends. Oozie needs CREATE SESSION to start and manage workflows. The additional roles are needed for creating and upgrading the Oozie database.

$ sqlplus system@localhost

Enter password: ******

SQL> create user oozie identified by oozie default tablespace users temporary tablespace temp;

User created.

SQL> grant alter index to oozie;
grant alter table to oozie;
grant create index to oozie;
grant create sequence to oozie;
grant create session to oozie;
grant create table to oozie;
grant drop sequence to oozie;
grant select dictionary to oozie;
grant drop table to oozie;
alter user oozie quota unlimited on users; 
alter user oozie quota unlimited on system;

SQL> exit

$

Add the Oracle JDBC Driver JAR to Oozie

Copy or symbolically link the Oracle JDBC driver JAR into the /var/lib/oozie/ directory.