1、Can't connect to local MySQL server through socket '/tmp/mysql.sock'
做了个软连接：ln -s /var/lib/mysql/mysql.sock /tmp
2、
[root@lml7wenjian software]# service mysql start
Starting MySQL.2020-01-21T07:46:16.483318Z mysqld_safe Directory '/var/lib/mysql' for UNIX socket file don't exists.
ERROR! The server quit without updating PID file (/var/lib/mysql/lml7wenjian.pid).
[root@lml7wenjian lib]# mkdir /var/lib/mysql [root@lml7wenjian lib]# chmod 777 /var/lib/mysql [root@lml7wenjian lib]# service mysql start Starting MySQL. SUCCESS!
3、my.cnf 配置：
[mysqld] datadir=/usr/local/mysql/data basedir=/usr/local/mysql/ socket=/var/lib/mysql/mysql.sock user=mysql port=3306 character-set-server=utf8 # remove password auth #skip-grant-tables # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Settings user and group are ignored when systemd is used. # If you need to run mysqld under a different user or group, # customize your systemd unit file for mariadb according to the # instructions in http://fedoraproject.org/wiki/Systemd [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid # # include all files from the config directory # !includedir /etc/my.cnf.d
找文件时遇到的问题，
yum -y install numactl
再试试这个
yum install libaio