MySQL

Creating new MySQL databases

Using ceo

Users can create their own MySQL databases through ceo. Users emailing syscom asking for a MySQL database should be directed to do so. The process is as follows:

1. SSH into any CSC machine.
2. Run ceo.
3. Select "Create MySQL database" and follow the instructions.
4. Login info will be stored in ceo-mysql-info in your home directory.
5. You can now connect to the MySQL database (from caffeine only).

Manually

To create a MySQL database manually:

$ mysql -uroot -p
Enter password: ******

mysql> CREATE DATABASE someusername;
Query OK, 1 row affected (0.00 sec)

mysql> GRANT ALL PRIVILEGES ON someusername.* to someusername@localhost IDENTIFIED BY 'longrandompassword';
Query OK, 0 rows affected (0.06 sec)

For random passwords run 'makepasswd --chars 20'. For the administrative password for the cluster see /users/sysadmin/passwords/mysql.

Write a file (usually ~club/mysql) to the club's homedir readable only by them containing the following:

Username: clubuserid
Password: longrandompassword
Hostname: localhost

Try not to send passwords via plaintext email.

Replication

See the history of this page for information on the previous replication setup.

Deleting MySQL databases

Users can delete their own MySQL databases.

SSH into caffeine.

mysql -u yourusernamehere -p
Enter password: ******
DROP DATABASE database name goes here

Login info and database name was created on database creation in ceo-mysql-info in your home directory.