目前MySQL5.7的最新版本是5.7.19，
下载
- 地址：https://dev.mysql.com/downloads/mysql/
- 名称：
mysql-5.7.19-1.el7.x86_64.rpm-bundle.tar
安装
我已经把安装包放到/usr/local/software路径下面
[root@localhost software]# ls
mysql-5.7.19-1.el7.x86_64.rpm-bundle.tar
查看是否已经安装mysql
rpm -qa | grep mysql
解压tar文件
- 命令
tar -xvf mysql-5.7.19-1.el7.x86_64.rpm-bundle.tar
- 执行结果
[root@localhost software]# tar -xvf mysql-5.7.19-1.el7.x86_64.rpm-bundle.tar
mysql-community-embedded-devel-5.7.19-1.el7.x86_64.rpm
mysql-community-client-5.7.19-1.el7.x86_64.rpm
mysql-community-server-5.7.19-1.el7.x86_64.rpm
mysql-community-test-5.7.19-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.19-1.el7.x86_64.rpm
mysql-community-minimal-debuginfo-5.7.19-1.el7.x86_64.rpm
mysql-community-server-minimal-5.7.19-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.19-1.el7.x86_64.rpm
mysql-community-common-5.7.19-1.el7.x86_64.rpm
mysql-community-embedded-5.7.19-1.el7.x86_64.rpm
mysql-community-devel-5.7.19-1.el7.x86_64.rpm
mysql-community-libs-5.7.19-1.el7.x86_64.rpm
卸载冲突的RPM组件
在我们安装mysql相关组件的时候，如果不将此冲突的组件删除掉，我们是安装不成功的。
我们可以先跳过这步，直接进入下步操作，在安装的过程中会有相应的提示。下面是我所碰到的一个提示：
# 安装mysql组件时出现的依赖错误
error: Failed dependencies:
mysql-community-common(x86-64) >= 5.7.9 is needed by mysql-community-libs-5.7.19-1.el7.x86_64
mariadb-libs is obsoleted by mysql-community-libs-5.7.19-1.el7.x86_64
# 卸载mariadb-libs时出现的依赖错误
error: Failed dependencies:
libmysqlclient.so.18()(64bit) is needed by (installed) postfix-2:2.10.1-6.el7.x86_64
libmysqlclient.so.18(libmysqlclient_18)(64bit) is needed by (installed) postfix-2:2.10.1-6.el7.x86_64
可以看出，我们需要卸载postfix和mariadb-libs相关的组件。卸载我们可以使用rpm -ev xxx。
- 查看
postfix和mariadb-libs
rpm -qa | grep postfix
rpm -qa | grep mariadb
- 执行过程
[root@localhost software]# rpm -qa | grep postfix
postfix-2.10.1-6.el7.x86_64
[root@localhost software]# rpm -qa | grep mariadb
mariadb-libs-5.5.52-1.el7.x86_64
- 卸载
postfix和mariadb-libs
rpm -ev postfix-2.10.1-6.el7.x86_64
rpm -ev mariadb-libs-5.5.52-1.el7.x86_64
- 执行过程
[root@localhost software]# rpm -ev postfix-2.10.1-6.el7.x86_64
Preparing packages...
postfix-2:2.10.1-6.el7.x86_64
[root@localhost software]# rpm -ev mariadb-libs-5.5.52-1.el7.x86_64
Preparing packages...
mariadb-libs-1:5.5.52-1.el7.x86_64
安装依赖组件
在我进行安装msql-community-server-xxx的时候出现了下面的问题
[root@localhost software]# rpm -ivh mysql-community-server-5.7.19-1.el7.x86_64.rpm
warning: mysql-community-server-5.7.19-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
/usr/bin/perl is needed by mysql-community-server-5.7.19-1.el7.x86_64
libaio.so.1()(64bit) is needed by mysql-community-server-5.7.19-1.el7.x86_64
libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-5.7.19-1.el7.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by mysql-community-server-5.7.19-1.el7.x86_64
net-tools is needed by mysql-community-server-5.7.19-1.el7.x86_64
perl(Getopt::Long) is needed by mysql-community-server-5.7.19-1.el7.x86_64
perl(strict) is needed by mysql-community-server-5.7.19-1.el7.x86_64
[root@localhost software]#
由上面的错误可以看出我们需要安装相应的依赖
libaionet-toolsperl
- 安装依赖
yum -y install libaio
yum -y install net-tools
yum -y install perl
安装mysql组件
经过上面的解压操作，我们得到了很多rpm文件。但是我们不需要这么多，我们只需要安装一下四个组件就可以了：
mysql-community-common-5.7.19-1.el7.x86_64.rpm
mysql-community-libs-5.7.19-1.el7.x86_64.rpm
mysql-community-client-5.7.19-1.el7.x86_64.rpm
mysql-community-server-5.7.19-1.el7.x86_64.rpm
因为具有依赖关系，所以我们需要按顺序执行。
用rpm -ivh 文件名就能安装相应的组件。
在执行server的时候，需要依赖安装一些工具组件，已经在上文有说明了
- 安装命令
rpm -ivh mysql-community-common-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.19-1.el7.x86_64.rpm
- 执行过程
[root@localhost software]# rpm -ivh mysql-community-common-5.7.19-1.el7.x86_64.rpm
warning: mysql-community-common-5.7.19-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-common-5.7.19-1.e################################# [100%]
[root@localhost software]# rpm -ivh mysql-community-libs-5.7.19-1.el7.x86_64.rpm
warning: mysql-community-libs-5.7.19-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-libs-5.7.19-1.el7################################# [100%]
[root@localhost software]# rpm -ivh mysql-community-client-5.7.19-1.el7.x86_64.rpm
warning: mysql-community-client-5.7.19-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-client-5.7.19-1.e################################# [100%]
[root@localhost software]# rpm -ivh mysql-community-server-5.7.19-1.el7.x86_64.rpm
warning: mysql-community-server-5.7.19-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-server-5.7.19-1.e################################# [100%]
启动数据库
# 查看mysql是否启动
service mysqld status
# 启动mysql
service mysqld start
# 停止mysql
service mysqld stop
# 重启mysql
service mysqld restart
修改密码
mysql安装完成之后我们是没有设置密码的，但是mysql为我们设置了一个临时的密码，我们可以查看mysql的日志知道这个临时密码。
- 查看临时密码
grep password /var/log/mysqld.log
- 执行过程
[root@localhost ~]# grep password /var/log/mysqld.log
2017-09-01T16:43:10.889769Z 1 [Note] A temporary password is generated for root@localhost: hcLMTxbOh2?w
这样我们得知临时密码是：hcLMTxbOh2?w。
然后我们用这个临时密码登录数据库。
数据库的密码需要满足以下条件：大小写字母，数字和特殊符号
- 执行命令
# 登录mysql，之后需要输入密码
mysql -p
# 设置新密码
set password = password("Mysql_123456");
# 退出当前登录
quit;
- 执行过程
[root@localhost ~]# mysql -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.19 MySQL Community Server (GPL)
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> set password = password("Mysql_123456");
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> quit;
重新登录，这样我们就能用新的密码登录了。我们可以愉快的进行数据库操作了。
