RPM安装

本文档主要介绍如何用RPM包方式安装GreatSQL数据库，假定本次安装是在CentOS 8.x x86_64环境中安装，并且是以root用户身份执行安装操作。

下载安装包

点击此处RPM安装 - 图1 (opens new window)下载最新的安装包，至少下载以下几个RPM包文件：

  • greatsql-client-8.0.32-24.1.el8.x86_64.rpm
  • greatsql-devel-8.0.32-24.1.el8.x86_64.rpm
  • greatsql-icu-data-files-8.0.32-24.1.el8.x86_64.rpm
  • greatsql-shared-8.0.32-24.1.el8.x86_64.rpm
  • greatsql-server-8.0.32-24.1.el8.x86_64.rpm

提示：建议直接下载RPM集中打包文件，例如 greatsql-8.0.32-24.1.el8.x86_64.rpm-bundle.tar.xz，就无需每个文件单独下载了。

运行环境配置

关闭selinux和防火墙

1. #关闭selinux
2. $ setenforce=0
3. $ sed -i '/^SELINUX=/c'SELINUX=disabled /etc/selinux/config

5. #关闭防火墙
6. $ systemctl disable firewalld
7. $ systemctl stop firewalld
8. $ systemctl disable iptables
9. $ systemctl stop iptables

另外，要先确认YUM源可用，因为安装GreatSQL时还要先安装其他依赖包，通过YUM安装最省事。

如果需要配置YUM源，可以参考这篇文档RPM安装 - 图2 (opens new window)。

安装依赖包

安装GreatSQL RPM包时，要先安装这些相关依赖包。

1. $ yum install -y pkg-config perl libaio-devel numactl-devel numactl-libs net-tools openssl openssl-devel jemalloc jemalloc-devel perl-Data-Dumper perl-Digest-MD5

更详细的请参考：安装准备。

安装RPM包

执行下面的命令安装PRM包，如果一切顺利的话，相应的过程如下所示：

1. $ rpm -ivh --nodeps greatsql*rpm
2. Verifying...                          ################################# [100%]
3. Preparing...                          ################################# [100%]
4. Updating / installing...
5. 1:greatsql-shared-8.0.32-24.1.el8  ################################# [ 20%]
6. 2:greatsql-client-8.0.32-24.1.el8  ################################# [ 40%]
7. 3:greatsql-icu-data-files-8.0.32-24################################# [ 60%]
8. 4:greatsql-server-8.0.32-24.1.el8  ################################# [ 80%]
9. 5:greatsql-devel-8.0.32-24.1.el8   ################################# [100%]

这就安装成功了。

提示：

  1. 安装GreatSQL RPM包需要先安装其他依赖包，可执行下面命令完成： yum install -y pkg-config perl libaio-devel numactl-devel numactl-libs net-tools openssl openssl-devel jemalloc jemalloc-devel perl-Data-Dumper perl-Digest-MD5 更详细的请参考：安装准备。

其他部分依赖包，如果通过YUM还是无法安装，则加上 --nodeps --force 强制忽略即可，例如：

1. $ rpm -ivh greatsql*rpm
2. error: Failed dependencies:
3. perl(Lmo) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
4. perl(Lmo::Meta) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
5. perl(Lmo::Object) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
6. perl(Lmo::Types) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
7. perl(Lmo::Utils) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
8. perl(Percona::Toolkit) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
9. perl(Quoter) is needed by greatsql-server-8.0.32-24.1.el8.x86_64
10. perl(Transformers) is needed by greatsql-server-8.0.32-24.1.el8.x86_64

12. #上述这些依赖包可以先忽略，不影响GreatSQL正常使用

14. $ rpm -ivh --nodeps --force greatsql*rpm
15. Preparing...                          ################################# [100%]
16. Updating / installing...
17. 1:greatsql-shared-8.0.32-24.1.el7  ################################# [ 20%]
18. 2:greatsql-client-8.0.32-24.1.el7  ################################# [ 40%]
19. 3:greatsql-icu-data-files-8.0.32-24################################# [ 60%]
20. 4:greatsql-server-8.0.32-24.1.el7  ################################# [ 80%]
21. 5:greatsql-devel-8.0.32-24.1.el7   ################################# [100%]
  1. 正式安装GreatSQL RPM包时，可能还需要依赖Perl等其他软件包，此处为快速演示，因此加上 --nodeps 参数，忽略相应的依赖关系检查。安装完毕后，如果因为依赖关系无法启动，请再行安装相应软件依赖包。

启动GreatSQL

启动GreatSQL服务前，先修改systemd文件，调高一些limit上限，避免出现文件数、线程数不够用的告警。

1. # 在[Server]区间增加下面几行内容
2. $ vim /lib/systemd/system/mysqld.service
3. ...
4. [Service]

6. # some limits
7. # file size
8. LimitFSIZE=infinity
9. # cpu time
10. LimitCPU=infinity
11. # virtual memory size
12. LimitAS=infinity
13. # open files
14. LimitNOFILE=65535
15. # processes/threads
16. LimitNPROC=65535
17. # locked memory
18. LimitMEMLOCK=infinity
19. # total threads (user+kernel)
20. TasksMax=infinity
21. TasksAccounting=false
22. ...

保存退出，然后再执行命令重载systemd，如果没问题就不会报错：

1. $ systemctl daemon-reload

执行下面的命令启动GreatSQL服务

1. $ systemctl start mysqld

检查服务是否已启动，以及进程状态：

1. $ systemctl status mysqld
2. ● mysqld.service - MySQL Server
3. Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
4. Active: active (running) since Wed 2022-07-06 10:35:57 CST; 42s ago
5. Docs: man:mysqld(8)
6. http://dev.mysql.com/doc/refman/en/using-systemd.html
7. Process: 43570 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
8. Main PID: 43653 (mysqld)
9. Status: "Server is operational"
10. Tasks: 39 (limit: 149064)
11. Memory: 446.4M
12. CGroup: /system.slice/mysqld.service
13. └─43653 /usr/sbin/mysqld
14. ...

16. $ ps -ef | grep mysqld
17. mysql      43653       1  3 10:35 ?        00:00:02 /usr/sbin/mysqld

19. $ ss -lntp | grep mysqld
20. LISTEN 0      70                 *:33060            *:*    users:(("mysqld",pid=43653,fd=23))
21. LISTEN 0      128                *:3306             *:*    users:(("mysqld",pid=43653,fd=26))

23. # 查看数据库文件
24. $ ls /var/lib/mysql
25. auto.cnf        ca.pem              '#ib_16384_1.dblwr'   ib_logfile1     mysql.ibd         mysqlx.sock.lock     server-cert.pem   undo_002
26. binlog.000001   client-cert.pem      ib_buffer_pool       ibtmp1          mysql.sock        performance_schema   server-key.pem
27. binlog.index    client-key.pem       ibdata1             '#innodb_temp'   mysql.sock.lock   private_key.pem      sys
28. ca-key.pem     '#ib_16384_0.dblwr'   ib_logfile0          mysql           mysqlx.sock       public_key.pem       undo_001

可以看到，GreatSQL服务已经正常启动了。

连接登入GreatSQL

RPM方式安装GreatSQL后，会随机生成管理员root的密码，通过搜索日志文件获取：

1. $ grep -i root /var/log/mysqld.log
2. 2022-07-06T02:35:54.691879Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: K<f9Iapd#wwp

可以看到，root账户的密码是：”K<f9Iapd#wwp” (不包含双引号)，复制到粘贴板里。

首次登入GreatSQL后，要立即修改root密码，否则无法执行其他操作，并且新密码要符合一定安全规则：

1. $ mysql -uroot -p
2. Enter password:     #<--这个地方粘贴上面复制的随机密码
3. Welcome to the MySQL monitor.  Commands end with ; or \g.
4. Your MySQL connection id is 8
5. Server version: 8.0.32-24 GreatSQL, Release 24, Revision 3714067bc8c

7. Copyright (c) 2021-2023 GreatDB Software Co., Ltd
8. Copyright (c) 2009-2021 Percona LLC and/or its affiliates
9. Copyright (c) 2000, 2021, Oracle and/or its affiliates.
10. ...
11. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

13. greatsql> \s   #<--想执行一个命令，提示要先修改密码
14. ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

16. greatsql> alter user user() identified by 'GreatSQL@202X';  #<--修改密码
17. Query OK, 0 rows affected (0.02 sec)

19. greatsql> \s   #<--就可以正常执行其他命令了
20. --------------
21. mysql  Ver 8.0.32-24 for Linux on x86_64 (GreatSQL, Release 24, Revision 3714067bc8c)

23. Connection id:          11
24. Current database:
25. Current user:           root@localhost
26. SSL:                    Not in use
27. Current pager:          stdout
28. Using outfile:          ''
29. Using delimiter:        ;
30. Server version:         8.0.32-24 GreatSQL, Release 24, Revision 3714067bc8c
31. Protocol version:       10
32. Connection:             Localhost via UNIX socket
33. Server characterset:    utf8mb4
34. Db     characterset:    utf8mb4
35. Client characterset:    utf8mb4
36. Conn.  characterset:    utf8mb4
37. UNIX socket:            /var/lib/mysql/mysql.sock
38. Binary data as:         Hexadecimal
39. Uptime:                 10 min 14 sec

41. Threads: 2  Questions: 7  Slow queries: 0  Opens: 130  Flush tables: 3  Open tables: 46  Queries per second avg: 0.005
42. --------------

44. greatsql> show databases;  #<--查看数据库列表
45. +--------------------+
46. | Database           |
47. +--------------------+
48. | information_schema |
49. | mysql              |
50. | performance_schema |
51. | sys                |
52. +--------------------+
53. 4 rows in set (0.01 sec)

55. greatsql>

关闭/重启GreatSQL

执行下面的命令关闭GreatSQL数据库。

1. $ systemctl stop mysqld

执行下面的命令重启GreatSQL数据库。

1. $ systemctl restart mysqld

至此，RPM包方式安装GreatSQL数据库完成。

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