1 切换目录，下载压缩包

cd /usr/local/

wget https://cdn.mysql.com/archives/mysql-5.6/mysql-5.6.45-linux-glibc2.12-x86_64.tar.gz

2 解压并将文件夹重命名

tar -zxvf mysql-5.6.45-linux-glibc2.12-x86_64.tar.gz

rm -rf mysql-5.6.45-linux-glibc2.12-x86_64.tar.gz 

mv mysql-5.6.45-linux-glibc2.12-x86_64/ mysql

3 添加用户组mysql   (执行路径为 /usr/local)

groupadd mysql

useradd -r -g mysql mysql

groups mysql

4 增加目录并重新赋予权限

mkdir -p  /data/mysql

chown mysql:mysql -R /data/mysql

5 配置my.cnf

vim /etc/my.cnf

 内容如下:

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/usr/local/mysql
datadir=/data/mysql
socket=/tmp/mysql.sock
log-error=/data/mysql/mysql.err
pid-file=/data/mysql/mysql.pid
#character config
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true

6 然后切换到 /usr/local/mysql/bin目录下

cd /usr/local/mysql/bin/

执行初始化命令

./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql/ --datadir=/data/mysql/ --user=mysql --initialize

7 将mysql.server 放置到 /etc/init.d/mysql 中

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

8   启动mysql服务

service mysql start
 
ps -ef|grep mysql
 

8 修改密码登录mysql

./bin/mysqladmin -u root password '123456'

./bin/mysql -h127.0.0.1 -uroot -p000000

Linux在登录之后 开启远程登录,刷新权限

grant all privileges on *.* to root@'%' identified by '123456';

flush privileges; 

9 Mysql设置开机自启

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

chmod +x /etc/init.d/mysqld

chkconfig --add mysqld

问题总结:

  1 执行初始化命令的时候 提示如下错误

./mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

   解决办法:

   切换到local目录,然后执行

yum install -y libaio

yum -y install numactl

2 执行mysql start的情况下 提示

Can't open the mysql.plugin table. Please run mysql_upgrade to create it.

 解决办法:

  切换到  mysql目录下,执行 

./scripts/mysql_install_db --user=mysql

3 ping 腾讯云服务器能够ping 通,但是 远程连接mysql无法连接

    应该是被防火墙给拦截了，可以先在腾讯云控制台 防火墙 修改安全规则 ，开放3306端口

  如果还是不行就 

   先查看防火墙状态

firewall-cmd --state 

 查看开放的端口

firewall-cmd --list-all  

开放3306端口

firewall-cmd --zone=public --add-port=3306/tcp --permanent 

最后重启防火墙

firewall-cmd --reload