I see several comments here that accuse Percona of bias against Maria for commercial reasons. If you look at Percona's services: https://www.percona.com/servic

I see several comments here that accuse Percona of bias against Maria for commercial reasons. If you look at Percona's services: https://www.percona.com/services/support/support-tiers-mysql-mariadb https://www.percona.com/services/support/support-tiers-mysql... They will happily take your money to support MariaDB. Percona Toolkit and Percona XtraBackup both support MariaDB. I have no dog in this fight -- I've left MySQL behind years ago and don't really miss it. I've hired Percona to help with some urgent DB problems I couldn't solve on my own and I was pleased with their work, but I have no stake in standing up for them. But the idea that they have some vested interest in pushing for MySQL over MariaDB doesn't seem born out by what they're selling.