MySQLレプリケーションの動作確認と不具合時の復旧方法 - 三十路エンジニアの備忘録+α
-log is added if you start the server with logging turned on.
-debug is added if you're running a debugging version of the server with
debugging on.
-demo is added if the server is running in demo mode
http://lists.mysql.com/mysql/77115
