MySQL登陆问题总结_MySQL

bitsCN.com MySQL登陆问题总结 想在自己的小本上练习一下MySQL，结果登陆就有问题，折腾了半个小时终于搞定，也把这几个常见的问题总结下来和大家分享。笔者的系统是OpenSuSE，其他系统的解决方式类似，供大家参考。 首先，登陆MySQL，提示ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysql/mysql.sock' (2)，ps后感觉mysqld是启动的呀 [plain]  atom@openSuSE:~> mysql -u root -h localhost -p  Enter password:      ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysql/mysql.sock' (2)  atom@openSuSE:~> ps aux | grep mysql  atom      1842  0.0  1.0 265564 41296 ?        Sl   09:15   0:00 /usr/sbin/mysqld --defaults-file=/home/atom/.local/share/akonadi//mysql.conf --datadir=/home/atom/.local/share/akonadi/db_data/ --socket=/home/atom/.local/share/akonadi/socket-openSuSE.site/mysql.socket  atom      2788  0.0  0.0   8276   876 pts/0    S+   09:25   0:00 grep --color=auto mysql  
 但是，查看mysqld的状态，发现Active: inactive (dead)。。。[plain]  atom@openSuSE:~> /etc/init.d/mysql status  redirecting to systemctl  mysql.service - LSB: Start the MySQL database server  Loaded: loaded (/etc/init.d/mysql)  Active: inactive (dead)  CGroup: name=systemd:/system/mysql.service  那就再启动一次，观察mysql的状态。
 [plain]  atom@openSuSE:~> sudo /etc/init.d/mysql restart  redirecting to systemctl      atom@openSuSE:~> ps aux | grep mysql  atom      1842  0.0  1.0 265564 41296 ?        Sl   09:15   0:00 /usr/sbin/mysqld --defaults-file=/home/atom/.local/share/akonadi//mysql.conf --datadir=/home/atom/.local/share/akonadi/db_data/ --socket=/home/atom/.local/share/akonadi/socket-openSuSE.site/mysql.socket  root     22000  0.0  0.0  11536  1644 ?        S    09:32   0:00 /bin/sh /usr/bin/mysqld_safe --mysqld=mysqld --user=mysql --pid-file=/var/run/mysql/mysqld.pid --socket=/var/run/mysql/mysql.sock --datadir=/var/lib/mysql  mysql    22322  0.2  1.0 721584 42540 ?        Sl   09:32   0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysql/mysqld.log --pid-file=/var/run/mysql/mysqld.pid --socket=/var/run/mysql/mysql.sock --port=3306  atom     22359  0.0  0.0   8276   872 pts/0    S+   09:33   0:00 grep --color=auto mysql  atom@openSuSE:~> /etc/init.d/mysql status  redirecting to systemctl  mysql.service - LSB: Start the MySQL database server  Loaded: loaded (/etc/init.d/mysql)      Active: active (running) since Mon, 18 Jun 2012 09:32:43 +0800; 3min 32s ago  Process: 21865 ExecStart=/etc/init.d/mysql start (code=exited, status=0/SUCCESS)  CGroup: name=systemd:/system/mysql.service  ├ 22000 /bin/sh /usr/bin/mysqld_safe --mysqld=mysqld --user=mysql --pid-file=/var/run/mysql/mysqld.pid --socket=...  └ 22322 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mys...  
 这下总算正常了，再尝试登陆又给出错误提示：ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)。在网上查到一种解决方案，供大家参考。首先，关闭mysqld服务，然后执行下面两条命令，总算可以进去了，先改密码~[plain]  atom@openSuSE:~> sudo /etc/init.d/mysql stop  root's password:      redirecting to systemctl  atom@openSuSE:~> sudo mysqld_safe --user=mysql --skip-grant-tables --skip-networking &  [1] 22638  atom@openSuSE:~> 120618 09:40:32 mysqld_safe Logging to '/var/log/mysql/mysqld.log'.  120618 09:40:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql    atom@openSuSE:~> mysql -u root mysql  [sql]  mysql> UPDATE user SET Password=PASSWORD('xxxx') where USER='root';  mysql> FLUSH PRIVILEGES;  mysql> quit  把PASSWORD('xxxx')中xxxx替换为你自己的密码。重启一次，使用设置的新密码就可以进去了。
  作者 nevasun bitsCN.com