MySQL Percona Server and Client 5.7 installation based on linux with rpm package

参考：http://blog.itpub.net/31015730/viewspace-2152272 安装mysql数据库及问题解决方法 （基于mysql community版）

1. 下载 https://www.percona.com/downloads/Percona-Server-5.7/

我的环境是Red Hat Linux 7.5，目标是安装5.7，所以选择5.7最新版本，选择相应的Software

 

因为不需要都安装，只下载了四个rpm包：

Percona-Server-client-57-5.7.31-34.1.el7.x86_64.rpm
Percona-Server-server-57-5.7.31-34.1.el7.x86_64.rpm
Percona-Server-shared-57-5.7.31-34.1.el7.x86_64.rpm
Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm

安装顺序为：

1. Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm
2. Percona-Server-shared-57-5.7.31-34.1.el7.x86_64.rpm
3. Percona-Server-client-57-5.7.31-34.1.el7.x86_64.rpm
4. Percona-Server-server-57-5.7.31-34.1.el7.x86_64.rpm

不知道顺序也没有关系，因为安装的时候会提示

 2. 安装

 上传到Linux后按照安装顺序：

1）rpm -ivh Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm

报错

root@DBSERVER mysql]# rpm -ivh Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm

warning: Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 8507efa5: NOKEY

error: Failed dependencies:

               mariadb-libs is obsoleted by Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64

解决：

a. 查看：[root@DBSERVER mysql]# rpm -qa | grep mariadb

mariadb-libs-5.5.56-2.el7.x86_64

b. 卸载：[root@DBSERVER mysql]# rpm -e mariadb-libs-5.5.56-2.el7.x86_64

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

c. 由于存在依赖关系，强制卸载

[root@DBSERVER software]# rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64

2) 再次安装rpm -ivh Percona-Server-shared-compat-57-5.7.31-34.1.el7.x86_64.rpm

3) 安装rpm -ivh Percona-Server-shared-57-5.7.31-34.1.el7.x86_64.rpm

4) 安装rpm -ivh Percona-Server-client-57-5.7.31-34.1.el7.x86_64.rpm

5) 安装[root@DBSERVER mysql]# rpm -ivh Percona-Server-server-57-5.7.31-34.1.el7.x86_64.rpm

warning: Percona-Server-server-57-5.7.31-34.1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 8507efa5: NOKEY

Preparing...                          ################################# [100%]

Updating / installing...

  1:Percona-Server-server-57-5.7.31-3################################# [100%]

Percona Server is distributed with several useful UDF (User Defined Function) from Percona Toolkit.

Run the following commands to create these functions:

mysql -e "CREATE FUNCTION fnv1a_64 RETURNS INTEGER SONAME 'libfnv1a_udf.so'"

mysql -e "CREATE FUNCTION fnv_64 RETURNS INTEGER SONAME 'libfnv_udf.so'"

mysql -e "CREATE FUNCTION murmur_hash RETURNS INTEGER SONAME 'libmurmur_udf.so'"

See http://www.percona.com/doc/percona-server/5.7/management/udf_percona_toolkit.html for more details

3. 查看mysql的服务

上述四个rpm包安装成功后

[root@DBSERVER mysql]# systemctl status mysqld.service

• ● mysqld.service - MySQL Server

   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)

   Active: inactive (dead)

     Docs: man:mysqld(8)

           http://dev.mysql.com/doc/refman/en/using-systemd.html

4. 启动mysql服务

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

[root@DBSERVER mysql]# systemctl status mysqld.service

• ● mysqld.service - MySQL Server

   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)

   Active: active (running) since Tue 2020-10-13 11:24:25 CST; 2s ago

     Docs: man:mysqld(8)

           http://dev.mysql.com/doc/refman/en/using-systemd.html

  Process: 37711 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)

  Process: 37626 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)

 Main PID: 37714 (mysqld)

    Tasks: 28

   Memory: 327.8M

   CGroup: /system.slice/mysqld.service

           └─37714 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid

Oct 13 11:24:18 DBSERVER systemd[1]: Starting MySQL Server...

Oct 13 11:24:25 DBSERVER systemd[1]: Started MySQL Server.

5. mysql服务启动成功，首先使用临时的密码进行登录，查看临时密码

[root@DBSERVER mysql]# grep "password" /var/log/mysqld.log

2020-10-13T03:24:22.707115Z 1 [Note] A temporary password is generated for root@localhost: =o)cjj=iY0um

2020-10-13T03:25:23.956186Z 0 [Note] Shutting down plugin 'validate_password'

2020-10-13T03:25:25.764120Z 0 [Note] Shutting down plugin 'sha256_password'

2020-10-13T03:25:25.764125Z 0 [Note] Shutting down plugin 'mysql_native_password'

6. 使用临时密码登录，然后修改root的密码

[root@DBSERVER mysql]# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor.  Commands end with ; or g.

Your MySQL connection id is 2

Server version: 5.7.31-34

 

Copyright (c) 2009-2020 Percona LLC and/or its affiliates

Copyright (c) 2000, 2020, 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> alter user 'root'@'localhost' identified by '123456';

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

下面是官方文档，对于该问题的解释：

https://dev.mysql.com/doc/refman/5.7/en/validate-password.html

上述报错的原因：其实与validate_password_policy的值有关。

validate_password_policy有以下取值：

默认是1，即MEDIUM，所以刚开始设置的密码必须符合长度，且必须含有数字，小写或大写字母，特殊字符。

解决方法：

修改validate_password_policy参数的值

mysql> set global validate_password_policy=0;

Query OK, 0 rows affected (0.00 sec)

mysql> select @@validate_password_length;

+----------------------------+

| @@validate_password_length |

+----------------------------+

|                 8                    |

+----------------------------+

1 row in set (0.05 sec)

默认的密码长度是8，少于8位依旧会出现报错

mysql> alter user 'root'@'localhost' identified by '123456';

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

mysql> alter user 'root'@'localhost' identified by '12345678';

Query OK, 0 rows affected (0.01 sec)

7. 使用新密码再次登录，登录成功

[root@DBSERVER mysql]# mysql -uroot -piotsuite

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or g.

Your MySQL connection id is 3

Server version: 5.7.31-34 Percona Server (GPL), Release 34, Revision 2e68637

 

Copyright (c) 2009-2020 Percona LLC and/or its affiliates

Copyright (c) 2000, 2020, 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>

8. 设置Linux的提示

1)      临时设置

mysql> prompt u@ h d >

PROMPT set to 'u@ h d >'

root@ localhost (none) >use mysql;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

root@ localhost mysql >prompt u@h d >

PROMPT set to 'u@h d >'

root@localhost mysql >

2)      永久设置

[root@DBSERVER mysql]# vi /etc/my.cnf

添加下面两句：

[mysql]

prompt=u@h [d]