After upgrading to CentOS 6.6, I get this error:
There is nothing indicating an issue into PHP, Nginx or MySQL logs. I can connect fine to the database, using the user listed into config.php file.
An unexpected database error occurred. Please try again later. <!-- Permission denied -->
# netstat -tulpan | grep 3306 tcp 0 0 :::3306 :::* LISTEN 2959/mysqld # mysql -u user -h 127.0.0.1 -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 2