mysql-8.0.16-linux-glibc2.12-x86_64

MySQL8數據庫安裝部署

1. 准備
   卸載之前安裝過的版本
   確保之前安裝過的版本完全卸載，包括老版本使用的數據文件。檢查“/etc/my.cnf”，“/etc/mysql”，刪除。
   依賴庫 - libaio
   影響到數據目錄初始化、服務啟動。
2. 安裝
   啟動MySQL的最簡單方法：

   groupadd mysql
   useradd -r -g mysql -s /bin/false mysql
   # jeecg項目需要忽略掉數據庫大小寫
   bin/mysqld --initialize --user=mysql --lower-case-table-names=1
   bin/mysqld_safe --user=mysql &
   # Next command is optional
   cp support-files/mysql.server /etc/init.d/mysql.server
   # reset password
   mysql -uroot -p
   alter user root@localhost identified by '';

    

   為啟動腳本添加配置選項/etc/my.cnf：

   [mysqld]
   datadir=/usr/local/mysql/var
   socket=/var/tmp/mysql.sock
   port=3306
   user=mysql
   
   [mysql.server]
   basedir=/usr/local/mysql

    

3. 創建對象

   創建數據庫、創建用戶並授權

   create database if not exists db_name character set = utf8;
   create user user_name@'host_name' identified by 'user_pass';
   grant all privileges on db_name.* to 'user_name'@host_name;
   show grants for 'user_name'@host_name;

   解決mysql2058

   alter user 'user_name'@'host_name' identified with mysql_native_password by 'user_pass';

    

    

4. 多實例運行
   選項：

   # Must have different values for each server instance.
   port=port_num
   socket={file_name|pipe_name}
   bind_address=0.0.0.0
   datadir=dir_name
   pid-file=file_name
   
   # log file options
   general_log_file=file_name
   log-bin[=file_name]
   slow_query_log_file=file_name
   log-error[=file_name]
   
   # To achieve better performance.
   tmpdir=dir_name

    

 

 

 

 

MySQL5