mysql登陸問題總結
首先，登陸mysql，提示error 2002 (hy000): can't connect to local mysql server through socket '/var/run/mysql/mysql.sock' (2)，ps後感覺mysqld是啟動的呀
[plain]
atom@opensuse:~> mysql -u root -h localhost -p
enter password: www.2cto.com
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 --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，檢視mysqld的狀態，發現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
那就再啟動一次，觀察mysql的狀態。
[plain]
atom@opensuse:~> sudo /etc/init.d/mysql restart
redirecting to systemctl www.2cto.com
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 --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) www.2cto.com
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...
這下總算正常了，再嘗試登陸又給出錯誤提示：error 1045 (28000): access denied for user 'root'@'localhost' (using password: yes)。
在網上查到一種解決方案，供大家參考。首先，關閉mysqld服務，然後執行下面兩條命令，總算可以進去了，先改密碼~
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atom@opensuse:~> sudo /etc/init.d/mysql stop
root's password: www.2cto.com
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('***x') where user='root';
mysql> flush privileges;
mysql> quit
把password('***x')中***x替換為你自己的密碼。重啟一次，使用設定的新密碼就可以進去了。
作者 nevasun
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