CentOS7 下启动、关闭、重启、查看MySQL服务
2021/4/10 19:19:19
本文主要是介绍CentOS7 下启动、关闭、重启、查看MySQL服务,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
1.启动命令
[root@iZuf625ohgv150cwlh1yn4Z bin]# service mysqlid start Redirecting to /bin/systemctl start mysqlid.service
2.关闭命令
[root@iZuf625ohgv150cwlh1yn4Z bin]# service mysqld stop Redirecting to /bin/systemctl stop mysqld.service
3.重启命令
[root@iZuf625ohgv150cwlh1yn4Z bin]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service
4.查看服务状态
[root@iZuf625ohgv150cwlh1yn4Z sbin]# 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 Sat 2021-04-10 14:25:15 CST; 10min ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 12683 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 12666 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 12686 (mysqld) CGroup: /system.slice/mysqld.service └─12686 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Apr 10 14:25:14 iZuf625ohgv150cwlh1yn4Z systemd[1]: Starting MySQL Server... Apr 10 14:25:15 iZuf625ohgv150cwlh1yn4Z systemd[1]: Started MySQL Server.
5.查看MySql系统配置
[root@iZuf625ohgv150cwlh1yn4Z sbin]# 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] port=8306 # # 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 #key_buffer_size指定用于索引的缓冲区大小,增加它可得到更好的索引处理性能。对于内存在4GB左右的服务器该参数可设置为256M或384M。注意:该参数值设置的过大反而会是服务器整体效率降低! key_buffer_size = 128M
参考链接:https://blog.csdn.net/xufengzhu/article/details/81110982
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