Mysql Moving /var/lib/mysql and Error: 121
The downside of a development server is … it’s for development.
It is not always cost effective to have the exact same setup as you you have in your production environment …
Especially if you have a multi server setup.
So I find myself today moving /var/lib/mysql … being as the OS drive is very small, and pulling down a near 20GB database backup and then trying to rebuild the database on the same drive … well as you can imagine caused a few problems doh
/etc/init.d/mysql stop mv /var/lib/mysql /raid_5/
So surely you just symlink … right?
ln -s /raid_5/mysql /var/lib/mysql /etc/init.d/mysql start
Well then answer would be no … upon importing the backup
mysql < backup.sql Can't create table './database/table.frm' (errno: 121)
A nice errorno: 121
/etc/init.d/mysql stop rm -rf /var/lib/mysql mkdir /var/lib/mysql chown mysql:mysql /var/lib/mysql mount --bind /raid_5/mysql /var/lib/mysql /etc/init.d/mysql start
et voila …
Data directory is relocated and the import working smoothly. Feel free to suggest any “cleaner” methods.
UPDATE: Please rememeber to add the ‘mount’ line into your rc.local otherwise when you reboot this mount will be gone!