http://mirzmaster.wordpress.com/2009/01/16/mysql-access-denied-for-user-debian-sys-maintlocalhost/

http://dba.stackexchange.com/questions/1261/how-to-safely-change-mysql-innodb-variable-innodb-log-file-size innodb_log_file_size = 25% * innodb_buffer_pool_size, np: [mysqld] innodb_log_file_size = 64M

http://blog.suszalski.pl/2011/03/jaka-wielkosc-innodbbufferpoolsize.html innodb_buffer_pool_size < 80% RAM, np: [mysqld] innodb_buffer_pool_size = 512M