Centos 7安装Msql(启动失败解决办法)

Linux因为版本问题,依赖关系复杂,安装方式也不尽相同,所以各自方法可能会有出入。
1.替换网易yum源
curl -o /etc/yum.repos.d/CentOS-Base.repo mirrors.163.com/.help/CentOS7-Base-163.repo
2.清除缓存
yum clean all 
yum makecache 
3.下载rpm文件
yum localinstall https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm 
 
4.安装MySQL数据库
yum install mysql* -y
5.Centos7的MySQL服务命令
systemctl restart mysqld.service 重启MySQL服务
systemctl start mysqld.service  开启MySQL服务
systemctl stop mysqld.service 停止MySQL服务
6.异常问题处理
如果在5中启动服务遇到报错: Failed to start mysqld.service: Unit not found.
或者说 Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
发生原因:Mysql开源之后Mariadb,如果在Centos 7中使用yum install 安装的是Mariadb,如法启动MySQL服务会报错,原因是安装的并不完整,所以需要安装 mariadb-server
1.yum install -y mariadb-server #安装mariadb-server
2.systemctl start mariadb.service #启动MySQL服务
3.systemctl enable mariadb.service #添加到开机自启动

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转载自www.cnblogs.com/Testking/p/11650216.html