MySQL Server 无法启动错误诊断一则

     mysql> select version()\G;
     *************************** 1. row ***************************
     version(): 5.5.16-log
     1 row in set (0.00 sec)
     
     
     [mysql@cdio ~]$ mysqld_safe &
     [1] 3036
     [mysql@cdio ~]$ 130506 19:16:34 mysqld_safe Logging to '/home/mysql/mysql/log/alert.log'.
     130506 19:16:34 mysqld_safe Starting mysqld daemon with databases from /home/mysql/mysql/data
     130506 19:16:36 mysqld_safe mysqld from pid file /home/mysql/mysql/data/cdio.pid ended
     
     
   查看日志、发现：
     130506 17:40:19 [ERROR] /home/mysql/mysql/bin/mysqld: unknown variable 'inactive_timeout=172800'
     130506 17:40:19 [ERROR] Aborting
     
     
     我靠！！！原来是inactive_timeout拼错了、该参数为interactive_timeout
     
     细心啊细心啊、、、、