linux mysql配置与说明

linux mysql配置与说明

一、软件安装
   　1. 安装MySQL
   　(1) 解开压缩包
          cd /usr/local
    　 tar -zvxf mysql-3.23.32.tar.gz 
        (2) 编译MySQL
        cd /usr/local/mysql
        ./configure --prefix=/usr/local/mysql
        make
        make install
       (3) 安装数据库文件
        /usr/local/mysql/scripts/mysql_install_db
       /usr/local/mysql/bin/safe_mysqld &

 

     (5)/usr/local/mysql/bin/mysql_install_db –user=mysql

     (6)chown –R mysql /usr/loca/mysql/var

     (7)/usr/local/mysql/bin/mysqld_safe &                  //启动mysql

     (8)/usr/loca/mysql/bin/mysqladmin –u root password 123456 //设置mysql密码

 

二、mysql授权内外网访问

       

>use mysql;

> grant ALL PRIVILEGES ON *.* to root@"%" identified by "root123" WITH GRANT OPTION;

 

 

三、碰到mysql的疑难问题，解决方法

 

关于mysql以下错误的解决方法

 

[root@localhost bin]# ./mysql -u root -p

Enter password:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

 

1.#ps -A|grep mysql
  显示类似：
  1829 ? 00:00:00 mysqld_safe
  1876 ? 00:00:31 mysqld
  2.#kill -9 1829
  3.#kill -9 1876
  4.#/etc/init.d/mysql restart
  5.#mysql -u root -p

 

 

四、关于外网用工具连接linux服务器里面的mysql出现的故障问题与解决方法

  

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock

 

以上这个现象是我在虚拟机上面装碰到的问题的错误提示。 root@localhost ~]# mysql --socket=/tmp/mysql.sock ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) 解决方法： 由于mysql 默认的mysql.sock 是在/var/lib/mysql/mysql.sock，但linux系统总是去/tmp/mysql.sock查找，所以会报错 [root@localhost ~]# find / -name mysql.sock /var/lib/mysql/mysql.sock 1.直接指定mysql通道 [root@localhost ~]# mysql --socket=/var/lib/mysql/mysql.sock Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 to server version: 5.0.22 Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> 2. 创建符号连接： 为mysql.sock增加软连接（相当于windows中的快捷方式）。 ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock 显示： root@localhost ~]# mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) [root@localhost ~]# ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock [root@localhost ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 to server version: 5.0.22 Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql>

    

 

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