CentOS7安裝mysql8簡介下載安裝初始化啟動測試總結

發布時間：2023-07-03 11:31:48 作者：網友整理

簡介

MySQL8.0已經正式發布了，提供了很多新特性，性能提升也是很明顯。

下載

可以直接使用國內的鏡像源進行下載

wget -c mirrors.huaweicloud.com/mysql/Downloads/MySQL-8.0/mysql-8.0.22-linux-glibc2.17-x86_64-minimal.tar.xz

centos7上glibc已經是2.17版本了，下載對應的版本即可。

安裝

需要安裝系統依賴包

yum -y install libaio

解壓安裝

tar xvf  mysql-8.0.22-linux-glibc2.17-x86_64-minimal.tar.xz
mv mysql-8.0.22-linux-glibc2.17-x86_64-minimal /usr/local/
cd /usr/local/
ln -s mysql-8.0.22-linux-glibc2.17-x86_64-minimal mysql

初始化

初始化的時候，需要指定運行用戶，因此需要創建運行用戶，并創建數據目錄

useradd -M -s /sbin/nologin  mysql
mkdir -p /data/mysql8/data
chown mysql.mysql /data/mysql8/data

初始化

/usr/local/mysql/bin/mysqld --initialize-insecure  --user=mysql --datadir=/data/mysql8/data

初始化后，默認的用戶是root@localhost，沒有密碼

配置文件

vim /etc/my.cnf

[mysqld]
datadir=/data/mysql8/data
socket=/data/mysql8/mysql.sock

[client]
socket=/data/mysql8/mysql.sock

設置啟動腳本

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

修改對應的程序和數據目錄

sed -i 's#^basedir=$#basedir=/usr/local/mysql#g' /etc/init.d/mysqld
sed -i  's#^datadir=$#datadir=/data/mysql8/data#g' /etc/init.d/mysqld

啟動測試

/etc/init.d/mysqld start

/usr/local/mysql/bin/mysql
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 9
Server version: 8.0.22 MySQL Community Server - GPL
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