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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