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: /etc/systemd/system/multi-user.target.wants/ [ drwxr-xr-x ]
name : mysql.service # MySQL systemd service file [Unit] Description=MySQL Community Server After=network.target [Install] WantedBy=multi-user.target [Service] Type=notify User=mysql Group=mysql PIDFile=/run/mysqld/mysqld.pid PermissionsStartOnly=true ExecStartPre=/usr/share/mysql/mysql-systemd-start pre ExecStart=/usr/sbin/mysqld TimeoutSec=infinity Restart=on-failure RuntimeDirectory=mysqld RuntimeDirectoryMode=755 LimitNOFILE=10000 # Set enviroment variable MYSQLD_PARENT_PID. This is required for restart. Environment=MYSQLD_PARENT_PID=1