mysql5.7安装

系统版本说明

[root@db01 data]# uname -r
3.10.0-693.el7.x86_64
[root@db01 data]# cat /etc/os-release 
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

1.下载源码包

下载地址：https://downloads.mysql.com/archives/community/

 yum install -y lrzsz bash-completion #下载常用软件包、命令提示工具		

2.解压数据包

 mkdir  -p /server/tools #创建压缩包存放位置
 cd  /server/tools 
 rz  -y #上传数据库包
 tar  xf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz  #解压文件
 mkdir  -p /application/mysql-5.7.17       #创建目录
 cd  mysql-5.7.17-linux-glibc2.5-x86_64       
 mv  * /application/mysql-5.7.17/  #移动文件
 mkdir  -p /application/mysql-5.7.17/data  #创建数据存储目录
 useradd  -s /sbin/nologin -M mysql  #创建mysql用户
 chown  -R mysql.mysql /application/mysql-5.7.17/data  #授权 
11 chown -R mysql.mysql /application/mysql5.6.34 #如果出现了权限问题，记得将数据的目录给到文件权限，而不软链接权限
				

3.初始化数据库

 yum   install   libaio   #安装静态依赖库
 /application/mysql-5.7.17/bin/mysqld  --initialize --basedir=/application/mysql-5.7.17  --datadir=/application/mysql-5.7.17/data/  --user=mysql  

查看密码并保存

root@localhost: T9j27b<Po(.E

4.修改配置文件

cd /application/mysql-5.7.17/support-files #进入配置目录
vim my.conf #编辑配置文件
#
[server] #此处可以设置多种服务，但是在测试环境下可以使用server
user=mysql
basedir=/application/mysql-5.7.17
datadir=/application/mysql-5.7.17/data
socket=/application/mysql-5.7.17/db01.sock #此处db01为当前主机名称
log-error=/var/log/mysql-5.7.17.log
pid-file=/application/mysql-5.7.17/db01.pid #此处db01为当前主机名称
port=3306
[client]#此处可以设置多种连接工具，但是尽量还是使用具体的方式连接

socket=/application/mysql-5.7.17/db01.sock #此处db01为当前主机名称

touch /application/mysql-5.7.17/db01.pid #创建文件
sed -i 's#/usr/local/mysql#/application/mysql-5.7.17#g' /application/mysql-5.7.17/bin/mysqld_safe  /application/mysql-5.7.17/support-files/mysql.server  #替换文件

5.启动与关闭服务

#启动
chown -R mysql.mysql /application/mysql-5.7.17 #授权
/application/mysql-5.7.17/support-files/mysql.server start #启动服务 方式1，默认使用/etc/my.conf配置文件

  /application/mysql-5.7.17/bin/mysqld_safe --defaults-file=/application/mysql-5.7.17/support-files/my.conf & #方式2，可以指定配置文件路径

  

  #关闭
  /application/mysql-5.7.17/bin/mysqladmin -uroot -p'T9j27b<Po(.E' -S /application/mysql-5.7.17/anyux.sock -P3307 shutdown

  #检查端口

   ss -lntup | grep 33

6.连接服务

mysql -uroot -p'T9j27b<Po(.E'
2 mysql -uroot -p'root' -S /application/mysql-5.7.17/db01.sock #连接

/application/mysql-5.7.17/bin/mysqladmin -uroot -pT9j27b<Po(.E  password #使用初始密码修改密码,注意密码使用单引号括起来，此处直接回车，会交互式地在输入定义密码
#mysqladmin: [Warning] Using a password on the command line interface can be #insecure.
#New password: root 测试密码为root
#Confirm new password: root 测试密码为root
#Warning: Since password will be sent to server in plain text, use ssl connection #to ensure password safety.

7.查看用户

 

8.远程连接数据库

mysql> grant all on *.* to 'root'@'10.0.0.%' identified by 'root';

 测试连接数据库

create DATABASE IF NOT EXISTS test;
use test;
create table IF NOT EXISTS t1(
  id int(11) NOT NULL  AUTO_INCREMENT,
  name CHAR(20) NOT NULL UNIQUE ,
  age INT(3) NOT NULL ,
  sex SMALLINT NOT NULL ,
  comments char(50) NOT NULL ,
  PRIMARY KEY(id)
)engine=innodb CHARSET=utf8;
desc test.t1;

插入上面的代码并在pycharm中查看表结构

 

bash-completion

yum install -y http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm 

yum -y install mysql-server

默认配置文件路径： 
配置文件：/etc/my.cnf 
日志文件：/var/log/var/log/mysqld.log 
服务启动脚本：/usr/lib/systemd/system/mysqld.service 
socket文件：/var/run/mysqld/mysqld.pid

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
server_id = 1
expire_logs_days = 3
 
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
 
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

  systemctl restart mysqld.service

　　ps -ef | grep mysql

　　ss -anlnt | grep 3306

  grep "password" /var/log/mysqld.log  #此处显示密码
mysql -uroot -p 
password: (输入密码)

重新启动mysqld
#/etc/init.d/mysqld restart ( service mysqld restart )
use mysql 
update user set password=password("12345") where user="root";
mysql 5.7的数据库没有了password字段 用的是authentication_string字段
mysql> update mysql.user set authentication_string=password('root') where user='root' ;
flush privileges;