2. mysql-takes-too-long-on-checking-permissions¶
https://dba.stackexchange.com/questions/66215/mysql-takes-too-long-on-checking-permissions https://serverfault.com/questions/233963/mysql-checking-permission-takes-a-long-time
主要出这个错误，是
https://dba.stackexchange.com/questions/66215/mysql-takes-too-long-on-checking-permissions https://serverfault.com/questions/233963/mysql-checking-permission-takes-a-long-time
主要出这个错误，是