一、单实例Mysql密码丢失解决办法
# ps -ef|grep 3306 # 查看3306实例的PID
# kill PID # kill PID
# mysqld_safe --skip-grant-table &
# > update mysql.user set password=PASSWORD("123456") where user='root' and host='localhost';
# > flush privileges;
# ps -ef |grep 3306
# kill PID # mysqld_safe还在后台运行，需kill重启mysql服务
# /etc/init.d/mysqld start
# mysql -uroot -p123456
Welcome to the MySQL monitor. Commands end with ; or \g.
... ...
mysql>
二、多实例Mysql密码丢失解决办法
# ps -ef |grep 3308
# kill PID
# mysqld_safe --defaults-file=/data/3308/my.cnf --skip-grant-table 2>&1 >/dev/null &
# mysql -S /data/3308/mysql.sock
> update mysql.user set password=PASSWORD("0818") where user='root' and host='localhost';
> flush privileges;
> quit
# ps -ef |grep 3308
# kill pid
# /data/3308/mysql start
# mysql -uroot -p0818 -S /data/3308/mysql.sock
Welcome to the MySQL monitor. Commands end with ; or \g.
......
mysql>
