mysql源码编译安装

MySQL是一种关系型数据库管理系统，关系数据库将数据保存在不同的表中，而不是将所有数据放在一个大仓库内，这样就增加了速度并提高了灵活性。由瑞典MySQL AB 公司开发，属于 Oracle 旗下产品。

tar zxf mysql-boost-5.7.31.tar.gz  ##解压安装包
cd mysql-5.7.31/
less INSTALL
yum install cmake -y   ##安装cmake

然后进行安装三步骤，注意：安装mysql不是使用configure，而是使用cmake

cmake——make——make install

根据提示下载安装一些所需要的模块和库

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DMYSQL_UNIX_ADDR=/data/mysql/mysql.sock -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_EXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8mb4 -DDEFAULT_COLLATION=utf8mb4_unicode_ci -DWITH_BOOST=boost/boost_1_59_0/yum install -y gcc-c++
yum install ncurses-devel -y
rm -f CMakeCache.txt
yum install  -y bison
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DMYSQL_UNIX_ADDR=/data/mysql/mysql.sock -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_EXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8mb4 -DDEFAULT_COLLATION=utf8mb4_unicode_ci -DWITH_BOOST=boost/boost_1_59_0/makemake install

cmake不同于configure的是，每次cmake结果会被缓存，所以在安装新的库之前我们可以先删除CMakeCache.txt清理缓存，然后重新进行cmake

安装完成后可以看到生成目录mysql

[root@server1 mysql]# cd support-files
[root@server1 support-files]# ls
magic  mysqld_multi.server  mysql-log-rotate  mysql.server
[root@server1 support-files]# cp mysql.server /etc/init.d/mysqld[root@server1 support-files]# useradd -M -d /data/mysql -s /sbin/nologin mysql
[root@server1 support-files]# id mysql
uid=1001(mysql) gid=1001(mysql) groups=1001(mysql)
[root@server1 support-files]# mkdir -p /data/mysql
[root@server1 support-files]# chown mysql.mysql /data/mysql

设置使用mysql命令

[root@server1 support-files]# cd /usr/local/mysql
[root@server1 mysql]# cd bin/
[root@server1 bin]# pwd
/usr/local/mysql/bin
[root@server1 bin]# vim ~/.bash_profilePATH=$PATH:$HOME/bin:/usr/local/mysql/bin[root@server1 bin]# source ~/.bash_profile[root@server1 ~]# which mysql  ##就可以使用mysql底下的命令了
/usr/local/mysql/bin/mysql

修改配置文件，更改路径

[root@server1 mysql-5.7.31]# vim /etc/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/data/mysql
socket=/data/mysql/mysql.sock
symbolic-links=0
log-error=/data/mysql/mysqld.log
pid-file=/data/mysql/mysqld.pid

初始化，查看随机密码

[root@server1 mysql-5.7.31]# mysqld --initialize --user=mysql
[root@server1 mysql]# cat mysqld.log  ##可以查看随机密码2021-12-10T06:01:51.140004Z 1 [Note] A temporary password is generated for root@localhost: yjA0kGZ8Fs-x[root@server1 mysql]# /etc/init.d/mysqld start
Starting MySQL. SUCCESS!

注意：

如果需要重新启动mysql,关闭进程，清空/data/mysql，重新初始化之后打开

安全初始化设置密码

[root@server1 mysql]# mysql_secure_installation Securing the MySQL server deployment.Enter password for user root:               ##这里输入随即密码The existing password for the user account root has expired. Please set a new password.New password:                     ##设置新密码Re-enter new password: VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?Press y|Y for Yes, any other key for No:
Using existing password for root.
Change the password for root ? ((Press y|Y for Yes, any other key for No) : ... skipping.
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y- Dropping test database...
Success.- Removing privileges on test database...
Success.Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.All done!

设置完成，登陆mysql

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