停止MySQL数据库服务器:mysqld失败

Question

基本上,当我想要mysql服务器服务时:

sudo /etc/init.d/mysql stop

我收到此错误消息:

[FAIL] Stopping MySQL database server: mysqld failed!

经过一些研究来解决这个问题,我遵循了这个待办事项:

sudo cat /etc/mysql/debian.cnf

这给了我类似的东西:

# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host     = localhost
user     = debian-sys-maint
password = xXxXxXxXxXxX
socket   = /var/run/mysqld/mysqld.sock
[mysql_upgrade]
host     = localhost
user     = debian-sys-maint
password = xXxXxXxXxXxX
socket   = /var/run/mysqld/mysqld.sock
basedir  = /usr

然后我做了

mysql -u root -p

最后

GRANT ALL PRIVILEGES ON *.* TO 'debian-sys-maint'@'localhost' IDENTIFIED BY 'xXxXxXxXxXxX' WITH GRANT OPTION;

这应该有效,但我在这里得到另一个错误:

ERROR 1045 (28000): Access denied for user 'root'@'%' (using password: NO)

实际上,在此之前我犯了一些错误,运行它:DELETE*FROM mysq.user WHERE host ='localhost'.

我现在只剩下一个用户了,似乎他没有获得GRANT的权限:

mysql> select Host, user from mysql.user;
+------------------+--------------+
| Host             | user         |
+------------------+--------------+
| %                | root         |
+------------------+--------------+
1 rows in set (0.00 sec

有办法处理这个吗？其实我只想删除mysql服务器并从头开始重新安装.但它会失败,直到我可以先停止mysqld:

〜$ ps aux | grep mysql | grep -v grep

root      8252  0.0  0.0  12720  2776 pts/1    Ss+  09:42   0:00 /usr/bin/dpkg --status-fd 17 --configure mysql-common:all libmysqlclient18:amd64 libdbd-mysql-perl:amd64 mysql-client-5.5:amd64 mysql-server-core-5.5:amd64 mysql-server-5.5:amd64
root      8255  0.0  0.3  61372 14180 pts/1    S+   09:42   0:00 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/mysql-server-5.5.postinst configure 5.5.38-0+wheezy1
root      8265  0.0  0.0  10900  1676 pts/1    S+   09:42   0:00 /bin/bash /var/lib/dpkg/info/mysql-server-5.5.postinst configure 5.5.38-0+wheezy1
root      8579  0.0  0.0  21656  2928 pts/1    S+   09:50   0:00 whiptail --backtitle Configuration package tools --title mysql-server-5.5 Configuration --output-fd 11 --nocancel --msgbox Impossible to change « root » password of MySQL 13 198
root     30566  0.0  0.0   4180   728 ?        S    00:41   0:00 /bin/sh /usr/bin/mysqld_safe
mysql    30882  0.0  1.9 368500 77668 ?        Sl   00:41   0:16 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306
root     30883  0.0  0.0   5588   696 ?        S    00:41   0:00 logger -t mysqld -p daemon.error

我已经尝试过:

sudo apt-get remove mysql-server mysql-client mysql-common
sudo apt-get purge mysql-server mysql-client mysql-common
sudo apt-get autoremove
sudo apt-get remove --purge mysql\*

它似乎失败了,因为它首先无法阻止mysqld

Answer 1

首先轻轻地杀掉它sudo kill 30882,如果它没有帮助,用火杀死它sudo kill -9 30882,在哪里30882是mysql进程的pid.

Answer 2

我遇到过同样的问题.我第一次做到了

sudo /etc/init.d/mysql restart

然后

sudo /etc/init.d/mysql stop

工作.