FreeBSD 环境下Mysql问题解决方法集锦

2014-11-24 17:28:42 · 作者: · 浏览: 0

整理了一些FreeBSD 环境下Mysql问题的解决方法,供大家参考!


1 修改root用户的密码时出现错误:


# mysqladmin -uroot -p password 'newpassword'


Enter password:


mysqladmin: connect to server at 'localhost' failed


error: 'Access denied for user 'root'@'localhost' (using password: YES)'


解决方案


# /etc/init.d/mysql stop


# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &


# mysql -u root mysql


mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';


mysql> FLUSH PRIVILEGES;


mysql> quit


# /etc/init.d/mysql restart


# mysql -uroot -p


Enter password: <输入新设的密码newpassword>


mysql>


问题解决哈!


2 启动Mysql时失败


提示Can’t connect to local MySQL server through socket


转载:http://pchome.blog.enorth.com.cn/article/221219.shtml


没有进行test。


启动mysql 报错:


ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)


1、先查看 /etc/rc.d/init.d/mysqld status 看看m y s q l 是否已经启动.


另外看看是不是权限问题.


2、确定你的mysql.sock是不是在那个位置,


mysql -u 你的mysql用户名 -p -S /var/lib/mysql/mysql.sock


3、试试:service mysqld start


4、如果是权限问题,则先改变权限 #chown -R mysql:mysql /var/lib/mysql


[root@localhost ~]# /etc/init.d/mysqld start


启动 MySQL: [ 确定 ]


[root@localhost ~]# mysql -uroot -p


ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)


原因是,/var/lib/mysql 的访问权限问题。


shell> chown -R mysql:mysql /var/lib/mysql


接着启动服务器


shell> /etc/init.d/mysql start


服务器正常启动后察看 /var/lib/mysql 自动生成mysql.sock文件。


但是我的问题仍然没有得到解决。


问题终于解决:


方法: 修改/etc/my.conf:


[mysqld]


datadir=/usr/local/mysql/data


socket=/var/lib/mysql/mysql.sock


[mysql.server]


user=mysql


basedir=/usr/local/mysql


If there is not currently a section called [client], add one at the bottom of the file and copy the socket= line under the [mysqld] section such as:


[client]


socket=/var/lib/mysql/mysql.sock


发现依旧如此,运行/etc/init.d/mysql start报错: Starting MySQLCouldn't find MySQL manager or server


是mysqld服务没启,运行/usr/local/mysql/bin/mysqld_safe &


问题解决。