linux系统安装mysql5.7.22

发布于 2018-10-30  2322 次阅读


1.下载mysql

2.下载完后上传到linux下的mysql目录下解压,执行命令:tar mysql-5.6.17-linux-glibc2.5-i686.tar.gz

建议:最好安装到/usr/local/mysql目录中,安装到别的目录可能会出现很多问题

3.重命名

rm -rf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.22-linux-glibc2.12-x86_64/ mysql

4.卸载系统自带mysql

查看:rpm -qa|grep mysql

卸载:rpm -e -nodeps softfullname

没安装mysql直接下一步

5.创建用户组和用户

创建用户组:groupadd mysql

创建用户:useradd -r -g mysql mysql

为了安全性,给mysql数据库创建专有用户,该用户只能访问mysql目录,不能访问系统其它目录

另外不建议直接用root初始化mysql,否则连接mysql时会报错:[ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!

6.给mysql用户指定专有用户和用户组

首先创建data目录

cd /usr/local/mysql

mkdir data

指定用户和用户组:

cd /usr/local

chown -R mysql mysql/

chgrp -R mysql mysql/

-R包含目录下所有和目录和文件
7、初始化mysql

cd /usr/local/mysql/bin

./mysqld --initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/ --lc_messages_dir=/usr/local/mysql/share --lc_messages=en_US

记住生成的临时密码

如果忘记密码或者想重新初始化,可以先将mysql/data目录中文件删除,然后再执行初始化命令
8、配置my.cnf

vi /etc/my.cnf

精简版:只要这两行 其余的注释掉
[plain] view plain copy

    [mysqld]  
    basedir=/usr/local/mysql/  
    datadir=/usr/local/mysql/data/  

可选版:
[plain] view plain copy

    # For advice on how to change settings please see  
    # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html  
    # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the  
    # *** default location during install, and will be replaced if you  
    # *** upgrade to a newer version of MySQL.  
      
    [mysqld]  
    # sql_mode = NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES   
      
    # 一般配置选项  
    basedir = /usr/local/mysql/  
    datadir = /usr/local/mysql/data  
    port = 3306  
    character-set-server = utf8  
    explicit_defaults_for_timestamp = true  
    # socket = /var/run/mysqld/mysqld.sock  
      
    #下面是可选项,要不要都行,如果出现启动错误,则全部注释掉,保留最基本的配置选项,然后尝试添加某些配置项后启动,检测配置项是否有误  
    back_log = 300  
    max_connections = 3000  
    max_connect_errors = 50  
    table_open_cache = 4096  
    max_allowed_packet = 32M  
    #binlog_cache_size = 4M  
      
    max_heap_table_size = 128M  
    read_rnd_buffer_size = 16M  
    sort_buffer_size = 16M  
    join_buffer_size = 16M  
    thread_cache_size = 16  
    query_cache_size = 128M  
    query_cache_limit = 4M  
    ft_min_word_len = 8  
      
    thread_stack = 512K  
    transaction_isolation = REPEATABLE-READ  
    tmp_table_size = 128M  
    #log-bin=mysql-bin  
    long_query_time = 6  
      
    server_id=1  
      
    innodb_buffer_pool_size = 1G  
    innodb_thread_concurrency = 16  
    innodb_log_buffer_size = 16M  
      
    innodb_log_file_size = 512M  
    innodb_log_files_in_group = 3  
    innodb_max_dirty_pages_pct = 90  
    innodb_lock_wait_timeout = 120  
    innodb_file_per_table = on  
      
    [mysqldump]  
    quick  
    max_allowed_packet = 32M  
      
    [mysql]  
    no-auto-rehash  
    default-character-set=utf8  
    safe-updates  
      
    [myisamchk]  
    key_buffer = 16M  
    sort_buffer_size = 16M  
    read_buffer = 8M  
    write_buffer = 8M  
      
    [mysqlhotcopy]  
    interactive-timeout  
      
    [mysqld_safe]  
    open-files-limit = 8192  
      
    [client]  
    /bin/bash: Q: command not found  

9、启动

cd /usr/local/mysql/bin

启动:./mysqld_safe --user=mysql &
10、设为开机启动

cd /usr/local/mysql/support-files/

cp mysql.server /etc/init.d/mysql

vi /etc/init.d/mysql

将mysql目录填上:

basedir=/usr/local/mysql/

datadir=/usr/local/mysql/data/

授权:chmod +x /etc/init.d/mysql

设为开机启动:chkconfig --add mysql
11、service启动

重启服务:service mysql restart

停止服务:service mysql stop

启动服务:service mysql start

查看服务:service mysql status
12、登录mysql修改密码授权远程登录

cd /usr/local/mysql/bin

登录:./mysql -u root -p    输入临时密码

修改密码:set password=password("root");

登录授权:grant all privileges on *.* to'root' @'%' identified by 'root';

授权生效:flush privileges;

可使用navicat或sqlyog等工具进行登录,注意关闭防火墙或开放3306端口

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作者:举头忘明月
来源:CSDN
原文:https://blog.csdn.net/NB6063/article/details/80417319
版权声明:本文为博主原创文章,转载请附上博文链接!


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