Instructions for not turning on mysqld-find tutorials Online

After booting, found unable to login MySQL

[Email protected] ~]# mysql-hlocalhost-uroot-p123456
MySQL: [Warning] Using a password on the command line interface can is insecure.
ERROR 2002 (HY000): Can ' t connect to local MySQL server through socket '/var/lib/mysql/mysql.sock ' (111)

View MySQL status, not up
[Email protected] ~]# systemctl status mysqld
Mysqld.service-sysv:mysql database server.
Loaded:loaded (/etc/rc.d/init.d/mysqld; bad; vendor preset:disabled)
Active:failed (Result:exit-code) since a 2018-05-07 18:55:45 CST; 3min 10s ago
Docs:man:systemd-sysv-generator (8)
process:995 execstart=/etc/rc.d/init.d/mysqld Start (code=exited, Status=1/failure)

May 18:55:37 Localhost.localdomain systemd[1]: Starting sysv:mysql database server ....
May 18:55:45 localhost.localdomain mysqld[995]: MySQL Daemon failed to start.
May 18:55:45 Localhost.localdomain mysqld[995]: Starting mysqld: [Failed]
May 18:55:45 localhost.localdomain systemd[1]: Mysqld.service:control process exited, Code=exite...s=1
May 18:55:45 localhost.localdomain systemd[1]: Failed to start sysv:mysql database server.
May 18:55:45 localhost.localdomain systemd[1]: Unit Mysqld.service entered failed state.
May 18:55:45 localhost.localdomain systemd[1]: Mysqld.service failed.
Hint:some lines were ellipsized, use-l to show on full.

[Email protected] run]# mkdir-p/var/run/mysqld
[Email protected] run]# chown mysql.mysql mysqld
[Email protected] run]# systemctl start mysqld
Open success!

Instructions for not turning on mysqld-find tutorials Online