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# Setting up Local Development Database
## Introduction
You need to setup a quick local database for development without needing root permissions and polluting your environment.
* ${HOME} is the path to your home directory
* An assumption is made that the GeneNetwork2 profile is in ${HOME}/opt/gn_profiles/gn2_latest for the purposes of this documentation. Please replace as appropriate.
* We install the database files under ${HOME}/genenetwork/mariadb. Change as appropriate.
## Steps
Setup directories
```
mkdir -pv ${HOME}/genenetwork/mariadb/var/run
mkdir -pv ${HOME}/genenetwork/mariadb/var/lib/data
mkdir -pv ${HOME}/genenetwork/mariadb/var/lib/mysql
```
Setup default my.cnf
```
cat <<EOF > ${HOME}/genenetwork/mariadb/my.cnf
[client-server]
socket=${HOME}/genenetwork/mariadb/var/run/mysqld/mysqld.sock
port=3307
[server]
user=$(whoami)
socket=${HOME}/genenetwork/mariadb/var/run/mysqld/mysqld.sock
basedir=${HOME}/opt/gn_profiles/gn2_latest
datadir=${HOME}/genenetwork/mariadb/var/lib/data
ft_min_word_len=3
EOF
```
Install the database
```
${HOME}/opt/gn_profiles/gn2_latest/bin/mysql_install_db \
--defaults-file=${HOME}/genenetwork/mariadb/my.cnf
```
Running the daemon:
```
${HOME}/opt/gn_profiles/gn2_latest/bin/mysqld_safe \
--defaults-file=${HOME}/genenetwork/mariadb/my.cnf
```
Connect to daemon
```
${HOME}/opt/gn_profiles/gn2_latest/bin/mysql \
--defaults-file=${HOME}/genenetwork/mariadb/my.cnf
```
Set up password for user
```
MariaDB [(none)]> USE mysql;
MariaDB [mysql]> ALTER USER '<your-username>'@'localhost' IDENTIFIED BY '<the-new-password>';
MariaDB [mysql]> FLUSH PRIVILEGES;
```
Now logout and login again with
```
$ ${HOME}/opt/gn_profiles/gn2_latest/bin/mysql \
--defaults-file=${HOME}/genenetwork/mariadb/my.cnf --password mysql
```
enter the newly set password and voila, you are logged in and your user has the password set up.
Now, setup a new user, say webqtlout, and a default database they can connect to
```
MariaDB [mysql]> CREATE DATABASE webqtlout;
MariaDB [mysql]> CREATE USER 'webqtlout'@'localhost' IDENTIFIED BY '<some-password>';
MariaDB [mysql]> GRANT ALL PRIVILEGES ON webqtlout.* TO 'webqtlout'@'localhost';
```
Now logout, and log back in as the new webqtlout user:
```
/home/frederick/opt/gn_profiles/gn2_latest/bin/mysql \
--defaults-file=/home/frederick/genenetwork/mariadb/my.cnf \
--user=webqtlout --host=localhost --password webqtlout
```
and enter the password you provided.
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