CentOS7安装mariadb后再安装msyql时systemctl status mysqld无法启动

关注

原创最新推荐文章于 2026-08-08 18:03:58 发布 5.5k 阅读 AI 写同款· GEO 优化 ›

【电子元件篇】电力电子中的变压器原理、作用、选型与测量指南-超简单解读变压器虽小，却是电力电子的 “关键纽带”——从识别符号型号，到理解 “传交流隔直流” 的特点，再到按用途选参数、用万用表检测，只要抓住 “场景对应核心” 的逻辑，就能轻松掌握它的用法。阅读详情

[mysql@cnski:/var/log]# systemctl start mysqld

[6]+ 已停止 systemctl start mysqld

-----------------长时间等待，不能结束，强行终端------------------

查看状态

[mysql@cnski:/var/log]# systemctl status mysqld

● mysqld.service - MySQL Community Server

Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)

Active: activating (start-post) (Result: exit-code) since 五 2016-01-08 14:24:37 CST; 4min 50s ago

Process: 5012 ExecStart=/usr/bin/mysqld_safe (code=exited, status=1/FAILURE)

Process: 5001 ExecStartPre=/usr/bin/mysql-systemd-start pre (code=exited, status=0/SUCCESS)

Main PID: 5012 (code=exited, status=1/FAILURE); : 5013 (mysql-systemd-s)

CGroup: /system.slice/mysqld.service

└─control

├─5013 /bin/bash /usr/bin/mysql-systemd-start post

└─6366 sleep 1

1月 08 14:24:37 cnski mysqld_safe[5012]: 160108 14:24:37 mysqld_safe Logging to '/var/log/mariadb/mariadb.log'.

1月 08 14:24:37 cnski mysqld_safe[5012]: touch: cannot touch ‘/var/log/mariadb/mariadb.log’: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: chmod: cannot access ‘/var/log/mariadb/mariadb.log’: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: 160108 14:24:37 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

1月 08 14:24:37 cnski mysqld_safe[5012]: /usr/bin/mysqld_safe: line 129: /var/log/mariadb/mariadb.log: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: /usr/bin/mysqld_safe: line 166: /var/log/mariadb/mariadb.log: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: touch: cannot touch ‘/var/log/mariadb/mariadb.log’: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: chown: cannot access ‘/var/log/mariadb/mariadb.log’: Permission denied

1月 08 14:24:37 cnski mysqld_safe[5012]: chmod: cannot access ‘/var/log/mariadb/mariadb.log’: Permission denied

1月 08 14:24:37 cnski systemd[1]: mysqld.service: main process exited, code=exited, status=1/FAILURE

原因：替换Mariadb是未能删除替换my.cnf，

解决：

修改my.cnf

log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

至

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

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