##第一种安装方式：

1. 首先要卸载数据库mariadb

[root@node03 ~]# rpm -qa | grep mariadb
mariadb-libs-5.5.68-1.el7.x86_64
[root@node03 ~]# rpm -e --nodeps mariadb-libs-5.5.68-1.el7.x86_64

否则会报一下错误

error: Failed dependencies:
mysql-community-common(x86-64) >= 5.7.9 is needed by mysql-community-libs-5.7.28-1.el7.x86_64
mariadb-libs is obsoleted by mysql-community-libs-5.7.28-1.el7.x86_64

2. 安装 net-tools 工具，否则会出现缺少依赖的错误

[root@node03 ~]# yum -y install net-tools

3. 安装 perl，否则会出现缺少依赖的错误

[root@node03 ~]# yum -y install perl

4. 上传 MySQL 的 tar 包到 node03 节点

[root@node03 ~]# cd /opt/apps/
[root@node03 apps]# ls
hadoop-3.2.2 jdk1.8.0_281

拖拽上传文件即可，要先安装lrzsz工具哟。

[root@node03 apps]# ls
hadoop-3.2.2 jdk1.8.0_281 mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar
[root@node03 apps]# mkdir MySQL
[root@node03 apps]# ls
hadoop-3.2.2 MySQL jdk1.8.0_281 mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar

5. 解包（注意：不是解压）

[root@node03 apps]# tar -xvf mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar -C MySQL
mysql-community-client-5.7.32-1.el7.x86_64.rpm
mysql-community-common-5.7.32-1.el7.x86_64.rpm
mysql-community-devel-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.32-1.el7.x86_64.rpm
mysql-community-libs-5.7.32-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.32-1.el7.x86_64.rpm
mysql-community-server-5.7.32-1.el7.x86_64.rpm
mysql-community-test-5.7.32-1.el7.x86_64.rpm
[root@node03 apps]# ls
hadoop-3.2.2 MySQL jdk1.8.0_281 mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar
[root@node03 apps]# cd MySQL/
[root@node03 MySQL]# ls
mysql-community-client-5.7.32-1.el7.x86_64.rpm
mysql-community-common-5.7.32-1.el7.x86_64.rpm
mysql-community-devel-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.32-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.32-1.el7.x86_64.rpm
mysql-community-libs-5.7.32-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.32-1.el7.x86_64.rpm
mysql-community-server-5.7.32-1.el7.x86_64.rpm
mysql-community-test-5.7.32-1.el7.x86_64.rpm

6. 开始安装：注意安装顺序：mysql-community-common，mysql-community-libs，mysql-community-libs-compat，mysql-community-client，mysql-community-server

[root@node03 MySQL]# rpm -ivh mysql-community-common-5.7.32-1.el7.x86_64.rpm
警告：mysql-community-common-5.7.32-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中… ################################# [100%]
正在升级/安装…
1:mysql-community-common-5.7.32-1.e################################# [100%]
[root@node03 MySQL]# rpm -ivh mysql-community-libs-5.7.32-1.el7.x86_64.rpm
警告：mysql-community-libs-5.7.32-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中… ################################# [100%]
正在升级/安装…
1:mysql-community-libs-5.7.32-1.el7################################# [100%]
[root@node03 MySQL]# rpm -ivh mysql-community-libs-compat-5.7.32-1.el7.x86_64.rpm
警告：mysql-community-libs-compat-5.7.32-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中… ################################# [100%]
正在升级/安装…
1:mysql-community-libs-compat-5.7.3################################# [100%]
[root@node03 MySQL]# rpm -ivh mysql-community-client-5.7.32-1.el7.x86_64.rpm
警告：mysql-community-client-5.7.32-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中… ################################# [100%]
正在升级/安装…
1:mysql-community-client-5.7.32-1.e################################# [100%]
[root@node03 MySQL]# rpm -ivh mysql-community-server-5.7.32-1.el7.x86_64.rpm
警告：mysql-community-server-5.7.32-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中… ################################# [100%]
正在升级/安装…
1:mysql-community-server-5.7.32-1.e################################# [100%]

7. 清理安装包

[root@node03 MySQL]# cd …
[root@node03 apps]# rm -rf MySQL
[root@node03 apps]# rm -rf mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar
[root@node03 apps]# ls
hadoop-3.2.2 jdk1.8.0_281