centos7安装mysql5.7.31

一、参考文献和环境

1.本文参考自:https://www.cnblogs.com/qixing/p/12271499.html

环境准备:

2.安装系统centos7

3.下载mysql5.7.31 下载地址:https://downloads.mysql.com/archives/community/  文件名:mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz

二、mysql安装

1.卸载自带的mariadb和mysql

rpm -qa | grep mariadb
rpm -qa | grep mysql

2.如果没有,就可以安装mysql,如果有,需要先卸载(remove后为上面命令查询到的内容,全文件名,我这里没有,没法展示)

yum remove mariadb-xxx

3.解压文件,修改目录名方便配置

tar -zxvf mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz -C /opt/soft/
cd /opt/soft
mv mysql-5.7.31-linux-glibc2.12-x86_64 mysql-5.7.31

4.在/usr/local/目录下创建到/opt/soft/mysql-5.7.31的软链接

5.添加mysql用户,修改mysql目录权限,并用此用户执行应用

useradd -s /bin/false -M mysql
cd /opt/soft
chown -R mysql:mysql mysql-5.7.31

6.拷贝配置文件,将mysql的配置文件拷贝为/etc/目录下的my.cnf,并修改配置文件

vim /etc/my.cnf ,内容为
[mysqld]
# binlog 配置
log-bin=/usr/local/mysql/logs/mysql-bin.log
expire-logs-days=14
max-binlog-size=500M
server-id=1
# GENERAL
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/usr/local/mysql/mysql.sock
user=mysql
default-storage-engine=InnoDB
character-set-server=utf8
lower_case_table_names = 1
explicit_defaults_for_timestamp=true
[mysqld_safe]
log-error=/usr/local/mysql/mysql-error.log
pid-file=/usr/local/mysql/mysqld.pid
[client]
socket=/usr/local/mysql/mysql.sock
[mysql]
default-character-set=utf8
socket=/usr/local/mysql/mysql.sock

7.安装mysql,进入mysql目录执行以下命令

cd /opt/soft/mysql-5.7.31
bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

 *若报错

 执行:

yum install -y libaio

*若报错 说明在my.cnf中指定的binlog配置文件的logs文件夹不存在:

在/usr/local/mysql/下创建logs文件夹就行了,并改为mysql用户

 再次执行脚本

出现以下信息,代表成功,要保存一下密码,

 

 

 8.拷贝启动程序,将mysql的启动程序拷贝到/etc/init.d/目录下

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

 9.安装完,启动mysql服务

service mysqld start

若报错:

 说明mysql-error.log不存在,手动去创建,并修改权限

cd /opt/soft/mysql-5.7.31
touch mysql-error.log
chown mysql:mysql mysql-error.log

 再试启动,出现SUCCESS,说明启动成功

10.配置环境变量,编辑/etc/profile,方便在任何地方用mysql命令

vim /etc/profile

#mysql
export MYSQL_HOME=/usr/local/mysql
export PATH=$PATH:$MYSQL_HOME/bin

重新编译  /etc/profile

source /etc/profile

11.登录mysql,修改密码

首次登录没有密码,提示输入密码时,输入第7步安装时生成的密码:p5j2jfX7am.h

mysql -uroot -p

这里要先使用alter user重置密码,不然会报错,我这里 修改mysql root用户密码 为  sa 

mysql> alter user 'root'@'localhost' identified by 'sa';
mysql> flush privileges;

 

  至此本机登录密码修改完成,若是想让其他机器访问,需要配置远程访问:

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '111111' WITH GRANT OPTION;

 至此搭建mysql-5.7.31版本就完成了

三、mysql常用命令 

service mysqld start     #启动
service mysqld stop        #关闭    
service mysqld restart    #重启    
service mysqld status     #查看运行状态 

 

posted on 2020-08-11 12:40  剑与心声  阅读(977)  评论(0编辑  收藏  举报