Centos 7 安装mysql5.7.24二进制 版本的方法及解决办法

Mysql 二进制安装方法

下载mysql

https://dev.mysql.com/downloads/mysql/

1.解压包

  tar xf mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz

2.实际生产环境

  mv mysql-5.7.24-linux-glibc2.12-x86_64 /usr/local/mysql5.7

a.新增Mysql用户组

   groupadd mysql

b. 新增用户

  opt]# useradd -r -g mysql mysql

C.给mysql 目录权限

  chown -R mysql:mysql mysql5.7

3. 到初始化环境的目录

   Cd /home/usr/local/mysql5.6/  mkdir data  mkdir log  chown -R mysql:mysql mysql5.7

4.初始化数据和指定安装目录和数据目录

  ./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql5.7/ --datadir=/usr/local/mysql5.7/data/

6复制启动文件

   cp mysql.server /etc/init.d/mysqld  chmod +x /etc/init.d/mysqld

7.修改启动路径

   vi /etc/init.d/mysqld  basedir= /usr/local/mysql5.7  datadir= /usr/local/mysql5.7/data

8.增加环境变量 （最下面添加）l

   vi /etc/profile  export MYSQL_HOME=" /usr/local/mysql5.7"  export PATH="$PATH:$MYSQL_HOME/bin"

9.刷新配置文件

  source /etc/profile

修改配置文件

  vi /etc/my.cnf  [client]  port=3306  [mysqld]  basedir=/usr/local/mysql5.7  datadir=/usr/local/mysql5.7/data  #socket=/usr/local/mysql5.7/mysql.sock  socket=/tmp/mysql.sock  user=mysql  #skip-grant-tables  # Disabling symbolic-links is recommended to prevent assorted security risks  symbolic-links=0  # Settings user and group are ignored when systemd is used.  # If you need to run mysqld under a different user or group,  # customize your systemd unit file for mariadb according to the  # instructions in http://fedoraproject.org/wiki/Systemd  [mysqld_safe]  log-error=/usr/local/mysql5.7/log/mysqld.log  pid-file=/usr/local/mysql5.7/data/mysqld.pid  #  # include all files from the config directory  #  !includedir /etc/my.cnf.d

11.添加开启自启

   chkconfig --add mysqld   chkconfig mysqld on

12.启动mysqld

   service mysqld start   netstat -anpt

13.修改密码（密码初始化的时候有个密码）

  2018-11-02T02:07:44.574468Z 1 [Note] A temporary password is generated for root@localhost: lXyB0%fi#9-S （这个就是密码）  mysql> help contents  ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.  mysql> help contents  ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.  mysql> show databases;  ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

解决办法

1、 修改用户密码

  mysql> alter user 'root'@'localhost' identified by 'youpassword';

或者

  mysql> set password=password("youpassword");

2、刷新权限

  mysql> flush privileges;  mysql> help contents