MySQL命令行登录挂起

Question

我在Ubuntu（版本16）上重启了MySQL，并且登录命令因未知原因而挂起。

   ubuntu@ip-172-31-12-122:~$ sudo /etc/init.d/mysql restart
    [ ok ] Restarting mysql (via systemctl): mysql.service.
    ubuntu@ip-172-31-12-122:~$
    ubuntu@ip-172-31-12-122:~$
    ubuntu@ip-172-31-12-122:~$ sudo mysqld -u root -p

Answer 1

看起来您正在前台启动服务器的新实例？

sudo mysqld -u root -p

https://dev.mysql.com/doc/refman/5.7/en/server-options.html

如果您想登录正在运行的实例

mysql -u root -p

https://dev.mysql.com/doc/refman/5.7/en/mysql.html