Home Database Mysql Tutorial Linux source code installation mysql5.7

Linux source code installation mysql5.7

Jul 08, 2020 pm 02:51 PM
linux mysql

1. Download the mysql source installation package

wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
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2. Install the mysql source

yum localinstall mysql57-community-release-el7-8.noarch.rpm
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3. Check whether the mysql source is installed successfully

yum repolist enabled | grep "mysql.*-community.*"
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Linux source code installation mysql5.7

4. When you see the picture above, the installation is successful.

You can modify the vim /etc/yum.repos.d/mysql-community.repo source and change the default installation. mysql version. For example, to install version 5.6, change the enabled=1 of the 5.7 source to enabled=0. Then change the enabled=0 of the 5.6 source to enabled=1. The effect after the modification is as follows:

Linux source code installation mysql5.7

5. Install Mysql

yum install mysql-community-server
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6. Start Mysql

systemctl start mysqld
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7. Start up

systemctl enable mysqldsystemctl daemon-reload
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8 .Modify the root local login password

After the mysql installation is completed, a default password is generated for root in the /var/log/mysqld.log file. Find the root default password in the following way, and then log in to mysql to modify it:

grep 'temporary password' /var/log/mysqld.log
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Linux source code installation mysql5.7

Command:

mysql -uroot -p
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Question: centos7.0 is installed After mysql5.7.11, use mysql -u root -p to connect to the database. Operation tip: You must reset your password using ALTER USER statement before executing this statement.

Following the prompts ALTER USER to change the password is invalid. Later I found that executing the following command can be done:

SET PASSWORD = PASSWORD(‘123456’);
set password for 'root'@'localhost'=password('你的新密码');
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The default password check policy requires that passwords must contain: uppercase and lowercase letters, numbers, and special symbols, and must be no less than 8 characters in length. Otherwise, the error ERROR 1819 (HY000): Your password does not satisfy the current policy requirements will be prompted, as shown in the following figure:

Linux source code installation mysql5.7##

grant all on *.* to 'root'@'127.0.0.1' identified by '123123'WITH GRANT OPTION;
flush privileges; //刷新权限表
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Notes:

After modifying the configuration, restart the mysql service to take effect:

systemctl restart mysqld
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Default configuration file path:

Configuration file:/etc/my.cnf

Log file:/var/log //var/log/mysqld.log

Service startup script:/usr/lib/systemd/system/mysqld.service

socket file:/var/run/mysqld/mysqld.pid

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