https://blog.csdn.net/liucheng417/article/details/80912291
yum install libaio -y
[mysql]
default-character-set=utf8
[mysqld]
port = 3306
basedir=/usr/local/mysql
datadir=/mnt/mysql_data
max_connections=300
character-set-server=utf8
default-storage-engine=INNODB
lower_case_table_names=1
max_allowed_packet=16M
socket = /tmp/mysql.sock
log-error = /data/mysql/error.log
pid-file = /data/mysql/mysql.pid
user = mysql
tmpdir = /tmp