1.启动命令
[root@iZm5ebqqzqmb5sbsneby3xZ ~]# service mysqld start Redirecting to /bin/systemctl start mysqld.service
2.关闭命令
[root@iZm5ebqqzqmb5sbsneby3xZ ~]# service mysqld stop Redirecting to /bin/systemctl stop mysqld.service
3.重启命令
[root@iZm5ebqqzqmb5sbsneby3xZ ~]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service
4.查看状态
[root@iZm5ebqqzqmb5sbsneby3xZ ~]# service mysqld status Redirecting to /bin/systemctl status mysqld.service ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2019-08-13 13:12:58 CST; 1h 0min ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 4210 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 4192 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 4214 (mysqld) CGroup: /system.slice/mysqld.service └─4214 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Aug 13 13:12:58 iZm5ebqqzqmb5sbsneby3xZ systemd[1]: Starting MySQL Server... Aug 13 13:12:58 iZm5ebqqzqmb5sbsneby3xZ systemd[1]: Started MySQL Server.
5.查看MySql系统配置
[root@iZm5ebqqzqmb5sbsneby3xZ ~]# cat /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid