mysqladmin:连接到"localhost"服务器失败 [英] mysqladmin: connect to server at 'localhost' failed

问题描述

今天(2015-05-02)我通过apt-get update和
升级了Linux系统. apt-get升级，而mysql，mysqladmin和更多软件包
已更新. mysql-server-5.5运行，我可以登录并全部执行
典型的数据库操作，但是当我键入以下内容时:

Today (2015-05-02) I upgraded my Linux system via apt-get update and
apt-get upgrade whereas mysql, mysqladmin and a lot more packages
have been updated. The mysql-server-5.5 runs and I can login and do all
the typical database operations but when I type:

user@ubuntu:~# mysqladmin proc

我收到以下错误:

I get the following error:

mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: NO)'

以前，我可以通过简单地将mysql根密码设置为new来解决此问题.
这不再解决问题:

Formerly I could solve this issue by simple setting the mysql root password new.
This does not solve the issue anymore:

user@ubuntu:~# sudo dpkg-reconfigure mysql-server-5.5

如何在不重新安装mysql的情况下再次启动mysqladmin?

How do I get the mysqladmin up again without reinstalling mysql?

推荐答案

短版:如果您的MySQL用户root需要密码才能连接，最好使用提供该密码;)

Short version: If your MySQL user root needs a password to connect, it might be a good idea to have mysqladmin provide that password ;)

较长版本:您的MySQL用户root似乎需要密码才能连接

Longer version: Your MySQL user root seems to need a password to connect

设置新的mysql根密码

setting the mysql root password new

但是mysqladmin尝试在没有密码的情况下连接

But mysqladmin tries to connect without a password

拒绝访问用户'root'@'localhost'(使用密码:否)'

'Access denied for user 'root'@'localhost' (using password: NO)'

mysqladmin这样做是因为您没有告诉其他人;)

And mysqladmin does that because you're not telling it otherwise ;)

mysqladmin与其他与MySQL相关的命令行工具(mysql，mysqldump，mysqlshow等)一样，提供了提供此类访问数据的选项.

mysqladmin, like other MySQL-related command line tools (mysql, mysqldump, mysqlshow etc.), offers options to provide such access data.

• h:要连接到的主机.如果未提供，则假定为localhost
• u:以哪个用户身份连接.如果未提供，则假定为root
• p:要使用的密码.如果未提供，则不使用密码

• h: Which host to connect to. If not provided, localhost is assumed
• u: Which user to connect as. If not provided, root is assumed
• p: Which password to use. If not provided, no password is used

您应该可以使用类似的东西

You should be able to use something like

mysqladmin -uroot -pmysupersecretpassword proc

(请注意，选项及其值之间没有空格).您也可以让MySQL要求您输入密码，例如

(be aware that there's no space between the options and their values). You can also have MySQL ask you for the password like

mysqladmin -uroot -p proc

这样，MySQL应该提示您输入密码.

With that, MySQL should give you a prompt where you can enter your password.

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