mysql

转载源:http://blog.sina.com.cn/s/blog_4f925fc30100rx5l.html

mysql -uroot -p

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

 

[root@centos var]# service mysqld stop

MySQL manager or server PID file could not be found!       [FAILED]
解决办法:
首先查看一下进程
[root@irxpert-test /]# ps -ef |grep mysq*
root     10274  0.0  0.0  68160  1336 ?        S    13:43   0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/irxpert-test.pid
mysql    10353  0.0  1.0 344360 39464 ?        Sl   13:43   0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/irxpert-test.err --pid-file=/var/lib/mysql/irxpert-test.pid
root     11884  0.0  0.0  63384   760 pts/1    S+   15:44   0:00 grep mysq*
如果看到上面的内容,那说明, Mysql 的进程卡死了,这时用就要把这些卡死的进程都关闭
[root@centos mysql]# kill 10274
[root@centos mysql]# kill 10353
启动 Mysql ok
[root@centos mysql]# service mysql start
Starting MySQL.                                            [  OK  ]

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