Starting MySQL.2021-11-17T11:04:25.022108Z mysqld_safe error: log-error set to '/var/log/mariadb/mariadb.log', however file don't exists. Create writable for user 'mysql'.
 ERROR! The server quit without updating PID file (/data/mysql/data/localhost.localdomain.pid).

After msyql8 compilation and installation, start MySQL with/etc/init.d/mysqld start command. The above errors are reported, and then I rechecked the content of my.cnf, as follows:

[mysqld]
server-id=1
port=3306
datadir=/data/mysql/data
basedir=/usr/local/mysql
socket=/usr/local/mysql/mysql.sock
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
[client]
socket=/usr/local/mysql/mysql.sock


[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

There is no problem with the overall configuration of my.cnf, and then the startup fails all the time. Finally, it is found that it is the log directory configured by mysqld_safe was not created

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

So create authorization directly

Note: the path of log error I configured here is under/var/log/MariaDB. The created path is configured according to its own actual path. Be sure not to forget to create mariadb.log, otherwise an error will be reported

mkdir /var/log/mariadb     
touch /var/log/mariadb/mariadb.log

MySQL users and users authorize directories

chown -R mysql:mysql /var/log/mariadb/

Start the MySQL service again

/usr/local/mysql/support-files/mysql.server start

perhaps

/etc/init.d/mysqld start

Other startup methods are implemented according to their actual situation