MySQL Performance: Stop hoarding. Drop unused MySQL databases

Originally published at: MySQL Performance: Stop hoarding. Drop unused MySQL databases

Recently, I supported a client with solving MySQL performance issues. There were several areas where MySQL performance issues were addressed. One issue, however, that was overlooked before our communications was that of keeping around unused databases. There were around 15 gigabytes of unused MySQL data – a mix of MyISAM and InnoDB tables – for…