阿里云 Centos7.3安装mysql5.7.18 rpm安装Mysql实例

《阿里云 Centos7.3安装mysql5.7.18 rpm安装Mysql实例》要点：
本文介绍了阿里云 Centos7.3安装mysql5.7.18 rpm安装Mysql实例，希望对您有用。如果有疑问，可以联系我们。

CentOS7默认安装MariaDB而不是MySQL,故先卸载MariaDB.MYSQL入门

1、安装新版mysql之前,我们需要将系统自带的mariadb-lib卸载
?MYSQL入门

1. [root@iZwz94qazh62gk5ewl4ei2Z?home]#?rpm?-qa?|?grep?-i?mariadb?
2. ?mariadb-libs-5.5.52-1.el7.x86_64?
3. [root@iZwz94qazh62gk5ewl4ei2Z?home]#?rpm?-e?--nodeps?mariadb-libs-5.5.52-1.el7.x86_64?

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2、到mysql的官网下载最新版mysql的rpm集合包：mysql-5.7.18-1.el6.x86_64.rpm-bundle.tarMYSQL入门

3、上传mysql-5.7.18-1.el6.x86_64.rpm-bundle.tar到linux服务器,并解压tar包
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1. [root@iZwz94qazh62gk5ewl4ei2Z?home]#?mkdir?mysql?
2. [root@iZwz94qazh62gk5ewl4ei2Z?home]#?tar?-xf?mysql-5.7.18-1.el6.x86_64.rpm-bundle.tar?-C?mysql?
3. [root@iZwz94qazh62gk5ewl4ei2Z?home]#?cd?mysql?
4. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?ll?
5. total?459492?
6. -rw-r--r--?1?7155?31415??23618836?Mar?20?17:40?mysql-community-client-5.7.18-1.el6.x86_64.rpm?
7. -rw-r--r--?1?7155?31415????335496?Mar?20?17:40?mysql-community-common-5.7.18-1.el6.x86_64.rpm?
8. -rw-r--r--?1?7155?31415???3747352?Mar?20?17:40?mysql-community-devel-5.7.18-1.el6.x86_64.rpm?
9. -rw-r--r--?1?7155?31415??39086508?Mar?20?17:40?mysql-community-embedded-5.7.18-1.el6.x86_64.rpm?
10. -rw-r--r--?1?7155?31415?135869292?Mar?20?17:40?mysql-community-embedded-devel-5.7.18-1.el6.x86_64.rpm?
11. -rw-r--r--?1?7155?31415???2177064?Mar?20?17:40?mysql-community-libs-5.7.18-1.el6.x86_64.rpm?
12. -rw-r--r--?1?7155?31415???1723180?Mar?20?17:40?mysql-community-libs-compat-5.7.18-1.el6.x86_64.rpm?
13. -rw-r--r--?1?7155?31415?159060212?Mar?20?17:41?mysql-community-server-5.7.18-1.el6.x86_64.rpm?
14. -rw-r--r--?1?7155?31415?104881084?Mar?20?17:41?mysql-community-test-5.7.18-1.el6.x86_64.rpm?

4、使用rpm -ivh命令进行安装MYSQL入门

1. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?rpm?-ivh?mysql-community-common-5.7.18-1.el6.x86_64.rpm?
2. warning:?mysql-community-common-5.7.18-1.el6.x86_64.rpm:?Header?V3?DSA/SHA1?Signature,?key?ID?5072e1f5:?NOKEY?
3. Preparing...??????????????????????????#################################?[100%]?
4. Updating?/?installing...?
5. ???1:mysql-community-common-5.7.18-1.e#################################?[100%]?
6. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?rpm?-ivh?mysql-community-libs-5.7.18-1.el6.x86_64.rpm?
7. warning:?mysql-community-libs-5.7.18-1.el6.x86_64.rpm:?Header?V3?DSA/SHA1?Signature,?key?ID?5072e1f5:?NOKEY?
8. Preparing...??????????????????????????#################################?[100%]?
9. Updating?/?installing...?
10. ???1:mysql-community-libs-5.7.18-1.el6#################################?[100%]?
11. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?rpm?-ivh?mysql-community-client-5.7.18-1.el6.x86_64.rpm?
12. warning:?mysql-community-client-5.7.18-1.el6.x86_64.rpm:?Header?V3?DSA/SHA1?Signature,?key?ID?5072e1f5:?NOKEY?
13. Preparing...??????????????????????????#################################?[100%]?
14. Updating?/?installing...?
15. ???1:mysql-community-client-5.7.18-1.e#################################?[100%]?
16. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?rpm?-ivh?mysql-community-server-5.7.18-1.el6.x86_64.rpm?
17. warning:?mysql-community-server-5.7.18-1.el6.x86_64.rpm:?Header?V3?DSA/SHA1?Signature,?key?ID?5072e1f5:?NOKEY?
18. Preparing...??????????????????????????#################################?[100%]?
19. Updating?/?installing...?
20. ???1:mysql-community-server-5.7.18-1.e#################################?[100%]?
21. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?

上面几个包有依赖关系,执行有先后.MYSQL入门

使用rpm安装方式安装mysql,安装的路径如下：MYSQL入门

a 数据库目录
/var/lib/mysql/
b 配置文件
/usr/share/mysql(mysql.server命令及配置文件)
c 相关命令
/usr/bin(mysqladmin mysqldump等命令)
d 启动脚本
/etc/rc.d/init.d/(启动脚本文件mysql的目录)MYSQL入门

e /etc/my.confMYSQL入门

5、 数据库初始化MYSQL入门

为了保证数据库目录为与文件的所有者为 mysql 登陆用户,如果你的linux系统是以 root 身份运行 mysql 服务,需要执行下面的命令初始化
?MYSQL入门

1. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?mysqld?--initialize?--user=mysql?

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如果是以 mysql 身份登录运行,则可以去掉 --user 选项.MYSQL入门

另外 --initialize 选项默认以“安全”模式来初始化,则会为 root 用户生成一个密码并将该密码标记为过期,登陆后你需要设置一个新的密码,MYSQL入门

而使用 --initialize-insecure 命令则不使用安全模式,则不会为 root 用户生成一个密码.MYSQL入门

这里演示使用的 --initialize 初始化的,会生成一个 root 账户密码,密码在log文件里,红色区域的就是自动生成的密码

?MYSQL入门

1. [root@iZwz94qazh62gk5ewl4ei2Z?mysql]#?cat?/var/log/mysqld.log?
2. 2017-06-05T14:30:52.709474Z?0?[Warning]?TIMESTAMP?with?implicit?DEFAULT?value?is?deprecated.?Please?use?--explicit_defaults_for_timestamp?server?option?(see?documentation?for?more?details).?
3. 2017-06-05T14:30:55.590590Z?0?[Warning]?InnoDB:?New?log?files?created,?LSN=45790?
4. 2017-06-05T14:30:56.000269Z?0?[Warning]?InnoDB:?Creating?foreign?key?constraint?system?tables.?
5. 2017-06-05T14:30:56.109868Z?0?[Warning]?No?existing?UUID?has?been?found,?so?we?assume?that?this?is?the?first?time?that?this?server?has?been?started.?Generating?a?new?UUID:?960c533e-49fb-11e7-91f2-00163e089fd2.?
6. 2017-06-05T14:30:56.116186Z?0?[Warning]?Gtid?table?is?not?ready?to?be?used.?Table?'mysql.gtid_executed'?cannot?be?opened.?
7. 2017-06-05T14:30:56.116777Z?1?[Note]?A?temporary?password?is?generated?for?root@localhost:?:Wu?2QQutQwj?

?MYSQL入门

?现在启动mysql数据库systemctl start mysqld.service(Centos7特有的启动方式)MYSQL入门

[root@iZwz94qazh62gk5ewl4ei2Z mysql]# systemctl start mysqld.service

可以使用下面两个命令对mysql进行停止,启动和重启：MYSQL入门

启动：MYSQL入门

使用 service 启动：service mysqld start
使用 mysqld 脚本启动：/etc/inint.d/mysqld start
使用 safe_mysqld 启动：safe_mysqld&

停止：MYSQL入门

使用 service 启动：service mysqld stop
使用 mysqld 脚本启动：/etc/inint.d/mysqld stop
mysqladmin shutdown 

重启：MYSQL入门

使用 service 启动：service mysqld restart
使用 mysqld 脚本启动：/etc/inint.d/mysqld restart

连接数据库MYSQL入门

[root@iZwz94qazh62gk5ewl4ei2Z mysql]# mysql -u root -p 
Enter password:

密码输入： ?:Wu?2QQutQwjMYSQL入门

修改密码：MYSQL入门

set password = password('你的密码');

设置远程访问MYSQL入门

grant all privileges on *.* to 'root' @%' identified by 123456'; 
flush privileges;

设置mysql开机启动MYSQL入门

1. 加入到系统服务：?
2. chkconfig?--add?mysqld?
3. 自动启动：?
4. chkconfig?mysqld?on?
5. 查询列表：?
6. chkconfig?
7. ?
8. 说明：都没关闭(off)时是没有自动启动.?

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