Install database -linux-5.7

1、 download tar package , Use here wget Download from official website

wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

2、 take mysql The installation to /usr/local/mysql Next

decompression

tar -xvf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

Move

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

rename

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

3、 newly build data Catalog

mkdir /usr/local/mysql/data

4、 newly build mysql user 、mysql User group

mysql User group

groupadd mysql

mysql user

useradd mysql -g mysql

5、 take /usr/local/mysql The owner and group of are changed to mysql

chown -R mysql.mysql /usr/local/mysql

6、 To configure

/usr/local/mysql/bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data

If the following error occurs ：

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2018-07-14 06:40:32 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2018-07-14 06:40:32 [ERROR] Child process: /usr/local/mysql/bin/mysqldterminated prematurely with errno= 32
2018-07-14 06:40:32 [ERROR] Failed to execute /usr/local/mysql/bin/mysqld --bootstrap --datadir=/usr/local/mysql/data --lc-messages-dir=/usr/local/mysql/share --lc-messages=en_US --basedir=/usr/local/mysql
– server log begin –

– server log end –
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Then use the following command ：

/usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize

If the following error occurs ：

/usr/local/mysql/bin/mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

Then execute the following command ：

yum -y install numactl

Continue installation after completion ：

/usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize

edit /etc/my.cnf

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[mysqld]
datadir=/usr/local/mysql/data
basedir=/usr/local/mysql
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8

Cancel password verification

skip-grant-tables

Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

skip-grant-tables

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
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7、 Opening service

take mysql Join the service

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

Boot from boot

chkconfig mysql on

Turn on

service mysql start

8、 Set the password

Sign in （ because /etc/my.cnf Canceling password authentication is set in , So the password here is arbitrary ）

/usr/local/mysql/bin/mysql -u root -p

operation mysql database

use mysql;

Change Password

update user set authentication_string=password(‘ Your password ’) where user=‘root’;

flush privileges;

exit;

9、 take /etc/my.cnf Medium skip-grant-tables Delete

10、 Log in and set the password again （ I don't know why I can't operate the database without setting the password again ）

/usr/local/mysql/bin/mysql -u root -p

ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘ Modified password ’;

exit;

11、 Allow remote connections

/usr/local/mysql/bin/mysql -u root -p

use mysql;

update user set host=’%’ where user = ‘root’;

flush privileges;

eixt;

12、 Add shortcut

ln -s /usr/local/mysql/bin/mysql /usr/bin