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| |
| [PostgreSQL](https://www.postgresql.org/) can be used by PredictionIO as a |
| storage backend for all 3 repositories (event data, meta data, and model data). |
| This is perhaps the easiest route if you are trying PredictionIO for the first |
| time. |
| |
| Make sure you have PostgreSQL installed. For Mac Users, |
| [Homebrew](https://brew.sh/) is recommended and can be used as |
| |
| ``` |
| $ brew install postgresql |
| ``` |
| or on Ubuntu: |
| |
| ``` |
| $ apt-get install postgresql |
| ``` |
| |
| Now that PostgreSQL is installed use the following comands |
| |
| ``` |
| $ createdb pio |
| ``` |
| |
| If you get an error of the form `could not connect to server: No such file or |
| directory`, then you must first start the server manually,: |
| |
| ``` |
| $ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start |
| ``` |
| |
| Finally use the command: |
| |
| ``` |
| $ psql -c "create user pio with password 'pio'" |
| ``` |
| |
| Starting from 0.11.0, PredictionIO no longer bundles JDBC drivers. Download the |
| PostgreSQL JDBC driver from the [official web |
| site](https://jdbc.postgresql.org/), and put the JAR file in the `lib` |
| subdirectory. Afterwords, you need to edit `conf/pio-env.sh` and change the |
| `POSTGRES_JDBC_DRIVER` variable to point to the correct JAR. |