120301 17:30:43 [ERROR] Column count of mysql.db is wrong. Expected 22, found 15. The table is probably corrupted
120301 17:30:43 [ERROR] mysql.user has no `Event_priv` column at position 29
120301 17:30:43 [ERROR] Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler.
3 以前使用MyISAM引擎的时候,多线程update往往会把表压坏,最近在insert的时候也发送了表损毁,最后锁定insert tablename values select ....... union all select .......,会带来表损毁的问题,拆开,一个一个insert,就没问题了