cat /etc/my.cnf
datadir=/usr/local/mysql/data
basedir=/usr/local/mysql
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8
#取消密码验证
skip-grant-tables
#Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
#skip-grant-tables
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
#修改datadir basedir log-error 等目录的权限，都改为mysql
chown mysql.mysql /var/log/mysqld.log