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mysql在linux下的安装

 关平藏书 2017-04-17

安装环境:系统是 centos6.5

1、下载

    下载地址:http://dev./downloads/mysql/5.6.html#downloads

    下载版本:我这里选择的5.6.33,通用版,linux下64位

    也可以直接复制64位的下载地址,通过命令下载:wget http://dev./get/Downloads/MySQL-5.6/mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

2、解压

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#解压
tar -zxvf mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz
#复制解压后的mysql目录
cp -r mysql-5.6.33-linux-glibc2.5-x86_64 /usr/local/mysql

3、添加用户组和用户

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#添加用户组
groupadd mysql
#添加用户mysql 到用户组mysql
useradd -g mysql mysql

4、安装

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cd /usr/local/mysql
mkdir ./data/mysql
5.6之前版本:chown -R mysql:mysql ././scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql/data/mysql
cp support-files/mysql.server /etc/init.d/mysqld
5.7版本:
 1.cp support-files/mysql.server /etc/init.d/mysqld
 2.cd /etc/init.d
 3.[root@localhost init.d]# ./mysqld --initialize  --datadir=/data/mysql/mysql3307/data/ --basedir=/usr/local/mysql/ 

chmod 755 /etc/init.d/mysqld
cp support-files/my-default.cnf /etc/my.cnf
#修改启动脚本
vi /etc/init.d/mysqld
#修改项:
basedir=/usr/local/mysql/
datadir=/usr/local/mysql/data/mysql
#启动服务
service mysqld start
#测试连接
./mysql/bin/mysql -uroot
#加入环境变量,编辑 /etc/profile,这样可以在任何地方用mysql命令了
export PATH=$PATH:/usr/local/mysql//bin<br>source /etc/profile
#启动mysql
service mysqld start
#关闭mysql
service mysqld stop
#查看运行状态
service mysqld status

5、错误

  5.1 sqlyog连接时,报1130错误,是由于没有给远程连接的用户权限问题

    解决1:更改 'mysql’数据库'user’表'host’项,从'localhost’改成'%’。

use mysql;
select 'host' from user where user='root'; 
update user set host = '%' where user ='root';
flush privileges; 

    解决2:直接授权

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

  5.2 安装时的一些错误

    -bash: ./scripts/mysql_install_db: /usr/bin/perl: bad interpreter: 没有那个文件或目录
    解决: yum -y install perl perl-devel

    Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
    解决:yum -y install libaio-devel

6、其他

  6.1 配置环境变量

    vi + /etc/profile

    export PATH=....:/usr/local/mysql/bin

7、附件:my.cnf文件内容:

#my.cnf

[client]

port            = 3307

socket          = /tmp/mysql.sock


[mysql]

prompt="\\u@\\h [\\d]>"

#pager="less -i -n -S"

#tee=/opt/mysql/query.log

no-auto-rehash


[mysqld_multi]

mysqld = /usr/local/mysql/bin/mysqld_safe

mysqladmin = /usr/local/mysql/bin/mysqladmin

log = /opt/mysql/mysqld_multi.log


[mysqld]

#misc

user = mysql

basedir = /usr/local/mysql

datadir = /data/mysql/mysql3307/data

port = 3307

socket = /tmp/mysql.sock

event_scheduler = 0


tmpdir = /data/mysql/mysql3307/tmp

#timeout

interactive_timeout = 300

wait_timeout = 300


#character set

character-set-server = utf8


open_files_limit = 65535

max_connections = 100

max_connect_errors = 100000

#lower_case_table_names =1

#logs

log-output=file

slow_query_log = 1

slow_query_log_file = slow.log

log-error = error.log

log_warnings = 2

pid-file = mysql.pid

    

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