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@@ -0,0 +1,851 @@
+# 前言
+
+> 在当今数字化转型的浪潮中，**数据库**作为信息系统的核心组件，其性能和稳定性直接关系到企业的业务运行效率和数据安全。==`openGauss`==，作为一款**开源**的**关系型数据库管理系统**，凭借其高性能、高可用性和可扩展性，逐渐成为众多企业和开发者的首选。随着`openGauss 6.0.0-LTS`版本的发布，**其带来了更加丰富的功能和更高的性能优化，为企业级应用提供了更加强大的支持**。
+>
+> 接下来让我们一起走进 `openGauss`的世界，探索其卓越的性能与广泛的应用价值！
+
+# openGauss介绍
+
+> `openGauss`是一款全面友好开放的**企业级开源关系型数据库管理系统**，它深度融合华为在数据库领域的研发经验，提供面向多核架构的极致性能、全链路业务与数据安全、基于AI的调优和高效运维能力，支持标准的SQL规范，具有**高性能、高可用、高安全、易运维、全开放的**特点，并允许任何人**免费使用、修改和分发，采用木兰宽松许可证协议。**
+>
+> **官网链接：**[https://opengauss.org/](https://opengauss.org/)
+
+
+
+# 软件下载
+
+> **可以根据自身业务需求，前往[openGauss官网](https://opengauss.org/zh/)下载对应软件版本，[点击此处](https://opengauss.org/zh/download/)直达`openGauss-6.0.0_LTS`的下载地址**
+>
+> - **企业版**：高斯数据库企业版提供全面的功能和高级特性，专为高性能、高可靠性和高安全性要求的企业级应用设计。
+> - **极简版**：高斯数据库极简版注重轻量级和易用性，为小型项目或测试环境提供基本的数据库服务。
+> - **轻量版**：高斯数据库轻量版专为特定操作系统和硬件架构优化，提供高性能和低资源占用的数据库解决方案。
+
+
+
+> `openGauss`**官网还提供了更加详细的数据库文档，供我们学习参考**
+>
+> **官方文档地址：**[https://docs-opengauss.osinfra.cn/zh/](https://docs-opengauss.osinfra.cn/zh/)
+
+
+
+# 部署流程
+
+## 环境规划
+
+> `openGauss 6.0.0-LTS`部署指南，从环境准备、安装配置到使用，全面覆盖部署过程中的各个环节。
+>
+> - **选择合适的操作系统：**`openEuler-22.03_LTS_x86_64`==（推荐）==
+> - **选择数据库的版本：**`openGauss-6.0.0_LTS_x86_64 企业版`
+> - **选择部署方式：**`虚拟机部署`和`服务器部署`（本篇文章选择**本地虚拟化部署**）
+> - **虚拟化软件的选择：**`vmware workstation player/pro`
+> - **部署方式：** 单节点虚拟机部署（和服务器安装方式一样，均可参考本篇博文）
+>
+> **如果在服务器进行部署，可以参考官方软硬件安装环境：**[准备软硬件安装环境](https://docs-opengauss.osinfra.cn/zh/docs/6.0.0/docs/GettingStarted/%E5%87%86%E5%A4%87%E8%BD%AF%E7%A1%AC%E4%BB%B6%E5%AE%89%E8%A3%85%E7%8E%AF%E5%A2%83.html)
+
+| 虚拟化软件 | 主机名 | 主机IP | 内存 | CPU | 核心数 | 磁盘 | 网络模式 |
+| :-----------: | :-------: | :-------------: | :--: | :--: | :----: | :--: | :------: |
+| VMware 16.2.3 | OpenGauss | 192.168.129.166 | 4GB | 1 | 2 | 80 | NAT |
+
+## 初始化环境配置
+
+### 设置主机名
+
+> 设置本地虚拟机主机名
+
+```bash
+[root@openGauss ~]# hostnamectl hostname openGauss
+[root@openGauss ~]# hostname
+openGauss
+```
+
+### 添加hosts表
+
+> 添加`hosts`表，在末尾追加**IP地址和主机名**，实现**主机名和IP地址**的**相互解析**
+
+```bash
+[root@openGauss ~]# echo '192.168.129.166 openGauss' >> /etc/hosts
+[root@openGauss ~]# cat /etc/hosts
+127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
+::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
+192.168.129.166 openGauss
+```
+
+### 关闭防火墙
+
+> **查看防火墙状态**
+
+```bash
+[root@openGauss ~]# systemctl status firewalld
+● firewalld.service - firewalld - dynamic firewall daemon
+ Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: >
+ Active: active (running) since Wed 2024-10-16 12:28:30 CST; 4min 17s ago
+ Docs: man:firewalld(1)
+ Main PID: 694 (firewalld)
+ Tasks: 2 (limit: 21433)
+ Memory: 46.0M
+ CGroup: /system.slice/firewalld.service
+ └─694 /usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid
+
+Oct 16 12:28:29 openGuass systemd[1]: Starting firewalld - dynamic firewall daemon...
+Oct 16 12:28:30 openGuass systemd[1]: Started firewalld - dynamic firewall daemon.
+```
+
+> **关闭防火墙和设置禁止开机自启动**
+
+```bash
+# 关闭防火墙
+[root@openGauss ~]# systemctl stop firewalld
+
+# 禁止开机自启动
+[root@openGauss ~]# systemctl disable firewalld
+Removed /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
+Removed /etc/systemd/system/multi-user.target.wants/firewalld.service.
+```
+
+### 关闭SElinux
+
+> 临时关闭`selinux`
+
+```bash
+[root@openGauss ~]# setenforce 0
+```
+
+> 修改`配置文件`，永久关闭`SELinux`，**重启**之后，即可生效
+
+```bash
+[root@openGauss ~]# vi /etc/selinux/config
+[root@openGauss ~]# cat /etc/selinux/config
+.....
+SELINUX=disabled # 将SELINUX修改文disabled
+.....
+
+# 重启虚拟机
+[root@openGauss ~]# reboot
+
+# 查看状态
+[root@openGauss ~]# getenforce 0
+DISABLED
+```
+
+### 设置字符集
+
+> 在 `/etc/profile`文件中，追加内容，设置**字符集和环境变量**
+
+```bash
+# 将以下内容添加至末尾
+[root@openGauss ~]# echo 'export LANG=en_US.UTF-8' >> /etc/profile
+[root@openGauss ~]# echo 'export packagePath=/opt/software/openGauss' >> /etc/profile
+[root@openGauss ~]# echo 'export LD_LIBRARY_PATH=$packagePath/script/gspylib/clib:$LD_LIBRARY_PATH' >> /etc/profile
+# 查看文件内容
+[root@openGauss ~]# cat /etc/profile
+......................
+export LANG=en_US.UTF-8
+export packagePath=/opt/software/openGauss
+export LD_LIBRARY_PATH=$packagePath/script/gspylib/clib:$LD_LIBRARY_PATH
+```
+
+> 加载配置文件并查看是否配置成功
+
+```bash
+# 加载配置文件
+[root@openGauss ~]# source /etc/profile
+
+# 检查字符集
+[root@openGauss ~]# env | grep -i lang
+LANG=en_US.UTF-8
+```
+
+### 配置yum源
+
+> 配置本地`yum源`，并安装必要软件包
+
+```bash
+# 创建挂载目录
+[root@openGauss yum.repos.d]# mkdir /opt/openEuler
+
+# 挂载镜像
+[root@openGauss yum.repos.d]# mount /dev/cdrom /opt/openEuler
+mount: /opt/openEuler: WARNING: source write-protected, mounted read-only.
+
+# 查看是否挂载成功
+[root@openGauss yum.repos.d]# df -h
+Filesystem Size Used Avail Use% Mounted on
+devtmpfs 1.7G 0 1.7G 0% /dev
+tmpfs 1.7G 0 1.7G 0% /dev/shm
+tmpfs 677M 9.0M 668M 2% /run
+tmpfs 4.0M 0 4.0M 0% /sys/fs/cgroup
+/dev/nvme0n1p3 77G 1.8G 71G 3% /
+tmpfs 1.7G 0 1.7G 0% /tmp
+/dev/nvme0n1p1 259M 83M 158M 35% /boot
+/dev/sr0 3.4G 3.4G 0 100% /opt/openEuler
+
+# 编写repo文件
+[root@openGauss yum.repos.d]# vi openEuler.repo
+[root@openGauss yum.repos.d]# cat openEuler.repo
+[openEuler]
+name=openEuler
+baseurl=file:///opt/openEuler
+enabled=1
+gpgcheck=0
+
+# 清理缓存
+[root@openGauss yum.repos.d]# yum clean all
+0 files removed
+
+# 构建缓存
+[root@openGauss yum.repos.d]# yum makecache
+openEuler 93 MB/s | 3.4 MB 00:00
+Last metadata expiration check: 0:00:01 ago on Wed 16 Oct 2024 12:56:38 PM CST.
+Metadata cache created.
+
+# 安装必要软件包
+[root@openGauss yum.repos.d]# yum install -y bash-completion vim net-tools
+[root@openGauss yum.repos.d]# bash
+```
+
+### 设置时区和时间
+
+> 安装`ntp客户端`
+
+```bash
+[root@openGauss ~]# yum install -y ntp
+```
+
+> 启动`服务`并设置`开机自启`
+
+```bash
+# 启动ntp服务
+[root@openGauss ~]# systemctl start ntpd
+
+# 设置开机自启
+[root@openGauss ~]# systemctl enable ntpd
+```
+
+> 设置`时区（Asia/Shanghai）`
+
+```bash
+# 设置时区 Asia/Shanghai
+[root@openGauss ~]# timedatectl set-timezone Asia/Shanghai
+```
+
+> 检查`时区`
+
+```bash
+[root@openGauss ~]# timedatectl | grep -i zone
+ Time zone: Asia/Shanghai (CST, +0800)
+```
+
+> 查看`时区和时间`
+
+```bash
+# 启动ntp服务
+[root@openGauss ~]# timedatectl set-ntp yes
+
+# 查看时区和时间
+[root@openGauss ~]# timedatectl status
+ Local time: Wed 2024-10-16 13:10:59 CST
+ Universal time: Wed 2024-10-16 05:10:59 UTC
+ RTC time: Wed 2024-10-16 05:10:59
+ Time zone: Asia/Shanghai (CST, +0800)
+System clock synchronized: no
+ NTP service: active
+ RTC in local TZ: no
+```
+
+> 修改`硬件时钟`
+
+```bash
+# 将当前系统时间写入硬件时钟
+[root@openGauss ~]# hwclock --systohc
+
+# 查看硬件时钟
+[root@openGauss ~]# hwclock
+2024-10-16 13:16:23.103308+08:00
+```
+
+### 关闭swap交换分区
+
+> **说明：** 关闭swap交换内存是为了保障数据库的访问性能，避免把数据库的缓冲区内存淘汰到磁盘上。 如果服务器内存比较小，内存过载时，可打开swap交换内存保障正常运行。
+
+```bash
+[root@openGauss ~]# swapoff -a
+```
+
+### 设置网卡MTU值
+
+> 执行如下命令查询自己的网卡名称
+
+```bash
+[root@openGauss ~]# ifconfig
+ens160: flags=4163 mtu 1500
+ inet 192.168.129.166 netmask 255.255.255.0 broadcast 192.168.129.255
+ inet6 fe80::49e5:ccbc:3431:22a3 prefixlen 64 scopeid 0x20
+ ether 00:0c:29:41:92:46 txqueuelen 1000 (Ethernet)
+ RX packets 3932 bytes 333130 (325.3 KiB)
+ RX errors 0 dropped 0 overruns 0 frame 0
+ TX packets 3479 bytes 418910 (409.0 KiB)
+ TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
+
+lo: flags=73 mtu 65536
+ inet 127.0.0.1 netmask 255.0.0.0
+ inet6 ::1 prefixlen 128 scopeid 0x10
+ loop txqueuelen 1000 (Local Loopback)
+ RX packets 0 bytes 0 (0.0 B)
+ RX errors 0 dropped 0 overruns 0 frame 0
+ TX packets 0 bytes 0 (0.0 B)
+ TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
+```
+
+> 使用如下命令将各数据库节点的网卡`MTU`值设置为相同大小。==MTU值推荐8192，要求不小于1500==
+
+```bash
+# 设置网卡的MTU
+[root@openGauss ~]# ifconfig ens160 mtu 8192
+
+# 查看网卡MTU
+[root@openGauss ~]# ifconfig -a | grep -i mtu
+ens160: flags=4163 mtu 8192
+lo: flags=73 mtu 65536
+```
+
+### 关闭RemoveIPC
+
+> 修改`/etc/systemd/logind.conf`文件中的“`RemoveIPC`”值为“`no`”。
+
+```bash
+[root@openGauss ~]# vim /etc/systemd/logind.conf
+[root@openGauss ~]# cat /etc/systemd/logind.conf
+..................
+#RuntimeDirectoryInodes=400k
+#RemoveIPC=no
+RemoveIPC=no # 修改为 no
+#InhibitorsMax=8192
+#SessionsMax=8192
+```
+
+> 修改`/usr/lib/systemd/system/systemd-logind.service`文件中的“`RemoveIPC`”值为“`no`”。
+
+```bash
+[root@openGauss ~]# vim /usr/lib/systemd/system/systemd-logind.service
+[root@openGauss ~]# cat /usr/lib/systemd/system/systemd-logind.service
+.................................
+# we keep one fd open per session.
+LimitNOFILE=524288
+RemoveIPC=no # 如果没有该参数，加载末尾即可
+```
+
+> `重新加载`配置参数
+
+```bash
+[root@openGauss ~]# systemctl daemon-reload
+[root@openGauss ~]# systemctl restart systemd-logind
+```
+
+> **检查修改是否生效**
+
+```bash
+[root@openGauss ~]# loginctl show-session | grep RemoveIPC
+RemoveIPC=no
+[root@openGauss ~]# systemctl show systemd-logind | grep RemoveIPC
+RemoveIPC=no
+```
+
+### 关闭HISTORY记录
+
+> 为避免指令历史记录安全隐患，需关闭各主机的`history`指令。
+
+```bash
+[root@openGauss ~]# vim /etc/profile
+.....
+# 设置HISTSIZE值为0
+HISTSIZE=0
+.....
+
+# 设置/etc/profile生效
+[root@openGauss ~]# source /etc/profile
+```
+
+### 设置root用户远程登录
+
+> 在`openGauss`安装时需要`root`帐户远程登录访问权限，数据库需要`root互信`时才**开启远程连接**。
+
+```bash
+[root@openGauss ~]# vim /etc/ssh/sshd_config
+...........
+PermitRootLogin yes # 修改为yes
+...............
+
+# 修改Banner配置，注释掉“Banner”所在的行。
+# Banner none
+..............
+
+# 重启服务，使配置生效
+[root@openGauss ~]# systemctl restart sshd.service
+```
+
+### 安装相关软件包
+
+| 所需软件 | 建议版本 |
+| :------------- | :------------------- |
+| libaio-devel | 建议版本：0.3.109-13 |
+| readline-devel | 建议版本：7.0-13 |
+| expect | -- |
+
+```bash
+[root@openGauss ~]# yum install -y libaio* tar readline-devel expect
+```
+
+
+
+## 安装openGauss数据库
+
+### 创建用户和用户组
+
+> - `omm` 用户为操作系统用户，也是未来 `openGauss` 数据库**管理员账户**
+> - `dbgroup` 是运行 `openGauss` 操作系统用户的**群组名称**
+
+```bash
+# 创建用户组
+[root@openGauss openGauss]# groupadd dbgroup
+
+# 创建用户并加入到组中
+[root@openGauss openGauss]# useradd -g dbgroup omm
+
+# 为用户设置密码
+[root@openGauss openGauss]# echo 'Huawei12#$' | passwd --stdin omm
+Changing password for user omm.
+passwd: all authentication tokens updated successfully.
+
+# 查看用户信息
+[root@openGauss openGauss]# id omm
+uid=1000(omm) gid=1000(dbgroup) groups=1000(dbgroup)
+```
+
+### 上传并解压软件
+
+> 创建目录存放软件包
+
+```bash
+[root@openGauss ~]# mkdir -p /opt/software/openGauss
+```
+
+> 将下载好的软件包上传到`/opt/software/openGauss`目录
+
+```bash
+[root@openGauss ~]# ls -l /opt/software/openGauss
+total 151168
+-rw-r--r--. 1 root root 154793862 Oct 16 13:47 openGauss-All-6.0.0-openEuler22.03-x86_64.tar.gz
+```
+
+> 为目录添加权限
+
+```bash
+[root@openGauss ~]# chmod 775 -R /opt/software/
+[root@openGauss ~]# ls -l /opt/software/openGauss
+total 151168
+-rwxrwxr-x. 1 root root 154793862 Oct 16 13:47 openGauss-All-6.0.0-openEuler22.03-x86_64.tar.gz
+```
+
+> 切换到目录中，进行解压压缩包
+
+```bash
+[root@openGauss ~]# cd /opt/software/openGauss/
+[root@openGauss openGauss]# tar -zxvf openGauss-All-6.0.0-openEuler22.03-x86_64.tar.gz
+openGauss-CM-6.0.0-openEuler22.03-x86_64.tar.gz
+openGauss-OM-6.0.0-openEuler22.03-x86_64.tar.gz
+openGauss-Server-6.0.0-openEuler22.03-x86_64.tar.bz2
+openGauss-CM-6.0.0-openEuler22.03-x86_64.sha256
+openGauss-OM-6.0.0-openEuler22.03-x86_64.sha256
+openGauss-Server-6.0.0-openEuler22.03-x86_64.sha256
+upgrade_sql.tar.gz
+upgrade_sql.sha256
+
+# 解压OM软件包
+[root@openGauss openGauss]# tar -zxvf openGauss-OM-6.0.0-openEuler22.03-x86_64.tar.gz
+[root@openGauss openGauss]# ll
+total 297M
+drwxr-x---. 19 root root 4.0K Sep 29 19:29 lib
+-rwxrwxr-x. 1 root root 148M Oct 16 13:47 openGauss-All-6.0.0-openEuler22.03-x86_64.tar.gz
+-rw-r-----. 1 root root 0 Sep 29 19:31 openGauss-CM-6.0.0-openEuler22.03-x86_64.sha256
+-rw-r-----. 1 root root 22M Sep 29 19:31 openGauss-CM-6.0.0-openEuler22.03-x86_64.tar.gz
+-rw-r-----. 1 root root 65 Sep 29 19:29 openGauss-OM-6.0.0-openEuler22.03-x86_64.sha256
+-rw-r-----. 1 root root 23M Sep 29 19:29 openGauss-OM-6.0.0-openEuler22.03-x86_64.tar.gz
+-rw-r-----. 1 root root 65 Sep 29 19:31 openGauss-Server-6.0.0-openEuler22.03-x86_64.sha256
+-rw-r-----. 1 root root 105M Sep 29 19:31 openGauss-Server-6.0.0-openEuler22.03-x86_64.tar.bz2
+drwxr-x---. 11 root root 4.0K Sep 29 19:29 script
+-rw-------. 1 root root 65 Sep 29 19:28 upgrade_sql.sha256
+-rw-------. 1 root root 552K Sep 29 19:28 upgrade_sql.tar.gz
+-rw-r-----. 1 root root 35 Sep 29 19:29 version.cfg
+```
+
+### 创建XML文件
+
+```bash
+[root@openGauss openGauss]# vim cluster_config.xml
+[root@openGauss openGauss]# cat cluster_config.xml
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+## 执行初始化安装
+
+> 采用**交互模式**执行预安装脚本
+
+```bash
+# 进入目录
+[root@openGauss openGauss]# cd script/
+
+# 执行初始化安装
+[root@openGauss script]# ./gs_preinstall -U omm -G dbgroup -X /opt/software/openGauss/cluster_config.xml
+Parsing the configuration file.
+Successfully parsed the configuration file.
+Installing the tools on the local node.
+Successfully installed the tools on the local node.
+Setting host ip env
+Successfully set host ip env.
+Are you sure you want to create the user[omm] (yes/no)? yes # 输入yes
+Preparing SSH service.
+Successfully prepared SSH service.
+Checking OS software.
+Successfully check OS software.
+Checking OS version.
+Successfully checked OS version.
+Checking cpu instructions.
+Successfully checked cpu instructions.
+Creating cluster's path.
+Successfully created cluster's path.
+Set and check OS parameter.
+Setting OS parameters.
+Successfully set OS parameters.
+[GAUSS-52400] : Installation environment does not meet the desired result.
+Please get more details by "/opt/software/openGauss/script/gs_checkos -i A -h openGauss -X /opt/software/openGauss/cluster_config.xml --detail".
+```
+
+## 警告信息处理
+
+> **查看详细的警告信息**（如果不处理也可以等安装完成之后，在进行处理）
+
+```bash
+[root@openGauss script]# /opt/software/openGauss/script/gs_checkos -i A -h openGauss -X /opt/software/openGauss/cluster_config.xml
+Checking items:
+ A1. [ OS version status ] : Normal
+ A2. [ Kernel version status ] : Normal
+ A3. [ Unicode status ] : Normal
+ A4. [ Time zone status ] : Normal
+ A5. [ Swap memory status ] : Normal
+ A6. [ System control parameters status ] : Warning
+ A7. [ File system configuration status ] : Warning
+ A8. [ Disk configuration status ] : Normal
+ A9. [ Pre-read block size status ] : Normal
+ A10.[ IO scheduler status ] : Normal
+ A11.[ Network card configuration status ] : Warning
+ A12.[ Time consistency status ] : Normal
+ A13.[ Firewall service status ] : Normal
+ A14.[ THP service status ] : Abnormal
+Total numbers:14. Abnormal numbers:1. Warning numbers:3.
+Do checking operation finished. Result: Abnormal.
+```
+
+### A6警告处理
+
+> A6. [ System control parameters status ] : Warning
+
+```bash
+# 操作系统参数设置
+[root@openGauss script]# echo net.ipv4.tcp_retries1 = 5 >>/etc/sysctl.conf
+[root@openGauss script]# echo net.ipv4.tcp_syn_retries = 5 >>/etc/sysctl.conf
+
+# 使参数生效
+[root@openGauss script]# sysctl -p
+kernel.sysrq = 0
+net.ipv4.ip_forward = 0
+net.ipv4.conf.all.send_redirects = 0
+net.ipv4.conf.default.send_redirects = 0
+net.ipv4.conf.all.accept_source_route = 0
+net.ipv4.conf.default.accept_source_route = 0
+net.ipv4.conf.all.accept_redirects = 0
+net.ipv4.conf.default.accept_redirects = 0
+net.ipv4.conf.all.secure_redirects = 0
+net.ipv4.conf.default.secure_redirects = 0
+net.ipv4.icmp_echo_ignore_broadcasts = 1
+net.ipv4.icmp_ignore_bogus_error_responses = 1
+net.ipv4.conf.all.rp_filter = 1
+net.ipv4.conf.default.rp_filter = 1
+net.ipv4.tcp_syncookies = 1
+kernel.dmesg_restrict = 1
+net.ipv6.conf.all.accept_redirects = 0
+net.ipv6.conf.default.accept_redirects = 0
+net.ipv4.tcp_max_tw_buckets = 10000
+net.ipv4.tcp_tw_reuse = 1
+net.ipv4.tcp_keepalive_time = 30
+net.ipv4.tcp_keepalive_intvl = 30
+net.ipv4.tcp_retries2 = 12
+net.ipv4.ip_local_reserved_ports = 15400-15407
+net.core.wmem_max = 21299200
+net.core.rmem_max = 21299200
+net.core.wmem_default = 21299200
+net.core.rmem_default = 21299200
+kernel.sem = 250 6400000 1000 25600
+net.ipv4.tcp_rmem = 8192 250000 16777216
+net.ipv4.tcp_wmem = 8192 250000 16777216
+vm.min_free_kbytes = 173081
+net.core.netdev_max_backlog = 65535
+net.ipv4.tcp_max_syn_backlog = 65535
+net.core.somaxconn = 65535
+kernel.shmall = 1152921504606846720
+kernel.shmmax = 18446744073709551615
+net.ipv4.tcp_retries1 = 5
+net.ipv4.tcp_syn_retries = 5
+```
+
+### A7警告处理
+
+> A7. [ File system configuration status ] : Warning
+
+```bash
+[root@openGauss script]# ulimit -a
+real-time non-blocking time (microseconds, -R) unlimited
+core file size (blocks, -c) unlimited
+data seg size (kbytes, -d) unlimited
+scheduling priority (-e) 0
+file size (blocks, -f) unlimited
+pending signals (-i) 13396
+max locked memory (kbytes, -l) 64
+max memory size (kbytes, -m) unlimited
+open files (-n) 1024
+pipe size (512 bytes, -p) 8
+POSIX message queues (bytes, -q) 819200
+real-time priority (-r) 0
+stack size (kbytes, -s) 8192
+cpu time (seconds, -t) unlimited
+max user processes (-u) 13396
+virtual memory (kbytes, -v) unlimited
+file locks (-x) unlimited
+
+[root@openGauss script]# echo "* soft nofile 1000000" >>/etc/security/limits.conf
+[root@openGauss script]# echo "* hard nofile 1000000" >>/etc/security/limits.conf
+
+# 新开一个窗口进行查看
+[root@openGauss ~]# ulimit -a
+real-time non-blocking time (microseconds, -R) unlimited
+core file size (blocks, -c) unlimited
+data seg size (kbytes, -d) unlimited
+scheduling priority (-e) 0
+file size (blocks, -f) unlimited
+pending signals (-i) 13396
+max locked memory (kbytes, -l) 64
+max memory size (kbytes, -m) unlimited
+open files (-n) 1000000
+pipe size (512 bytes, -p) 8
+POSIX message queues (bytes, -q) 819200
+real-time priority (-r) 0
+stack size (kbytes, -s) 8192
+cpu time (seconds, -t) unlimited
+max user processes (-u) unlimited
+virtual memory (kbytes, -v) unlimited
+file locks (-x) unlimited
+```
+
+### A11警告处理
+
+> A11.[ Network card configuration status ] : Warning
+
+```bash
+# 在文本末添加 MTU="8192"
+[root@openGauss ~]# cd /etc/sysconfig/network-scripts/
+[root@openGauss network-scripts]# vim ifcfg-ens160
+[root@openGauss network-scripts]# cat ifcfg-ens160
+.........................
+PREFIX=24
+GATEWAY=192.168.129.254
+DNS1=114.114.114.114
+MTU="8192"
+
+# 重启网卡即可生效
+[root@openGuass ~]# nmcli connection down ens160
+[root@openGuass ~]# nmcli connection up ens160
+```
+
+## 重新执行初始化安装
+
+> 进入`script`目录，**执行初始化安装**
+
+```bash
+[root@openGauss ~]# cd /opt/software/openGauss/script/
+
+[root@openGauss script]# ./gs_preinstall -U omm -G dbgroup -X /opt/software/openGauss/cluster_config.xml
+Parsing the configuration file.
+Successfully parsed the configuration file.
+Installing the tools on the local node.
+Successfully installed the tools on the local node.
+Setting host ip env
+Successfully set host ip env.
+Are you sure you want to create the user[omm] (yes/no)? yes
+Preparing SSH service.
+Successfully prepared SSH service.
+Checking OS software.
+Successfully check os software.
+Checking OS version.
+Successfully checked OS version.
+Creating cluster's path.
+Successfully created cluster's path.
+Set and check OS parameter.
+Setting OS parameters.
+Successfully set OS parameters.
+Set and check OS parameter completed.
+Preparing CRON service.
+Successfully prepared CRON service.
+Setting user environmental variables.
+Successfully set user environmental variables.
+Setting the dynamic link library.
+Successfully set the dynamic link library.
+Setting Core file
+Successfully set core path.
+Setting pssh path
+Successfully set pssh path.
+Setting Cgroup.
+Successfully set Cgroup.
+Set ARM Optimization.
+No need to set ARM Optimization.
+Fixing server package owner.
+Setting finish flag.
+Successfully set finish flag.
+Preinstallation succeeded.
+```
+
+## 执行安装
+
+> 切换用户，进行数据库的安装，密码自定义
+
+```bash
+[root@openGauss openGauss]# chmod 775 -R /opt/software/openGauss/script/
+[root@openGauss ~]# su - omm
+
+
+[omm@openGauss script]$ ./gs_install -X /opt/software/openGauss/cluster_config.xml
+
+Parsing the configuration file.
+Successfully checked gs_uninstall on every node.
+Check preinstall on every node.
+Successfully checked preinstall on every node.
+Creating the backup directory.
+Successfully created the backup directory.
+begin deploy..
+Installing the cluster.
+begin prepare Install Cluster..
+Checking the installation environment on all nodes.
+begin install Cluster..
+Installing applications on all nodes.
+Successfully installed APP.
+begin init Instance..
+encrypt cipher and rand files for database.
+Please enter password for database: # 自定义数据库密码
+Please repeat for database:
+begin to create CA cert files
+The sslcert will be generated in /opt/gaussdb/app/share/sslcert/om
+NO cm_server instance, no need to create CA for CM.
+Non-dss_ssl_enable, no need to create CA for DSS
+Cluster installation is completed.
+Configuring.
+Deleting instances from all nodes.
+Successfully deleted instances from all nodes.
+Checking node configuration on all nodes.
+Initializing instances on all nodes.
+Updating instance configuration on all nodes.
+Check consistence of memCheck and coresCheck on database nodes.
+Configuring pg_hba on all nodes.
+Configuration is completed.
+The cluster status is Normal.
+Successfully started cluster.
+Successfully installed application.
+end deploy..
+```
+
+> 查看数据库实例信息
+
+```bash
+[omm@openGauss script]$ gs_om -t status --detail
+[ Cluster State ]
+
+cluster_state : Normal
+redistributing : No
+current_az : AZ_ALL
+
+[ Datanode State ]
+
+ node node_ip port instance state
+--------------------------------------------------------------------------------------
+1 openGauss 192.168.129.166 15400 6001 /gaussdb/data/db1 P Primary Normal
+```
+
+> 通过 `gsql` 连接数据库
+
+```bash
+[omm@openGauss script]$ gsql -d postgres -p 15400 -r
+gsql ((openGauss 6.0.0 build aee4abd5) compiled at 2024-09-29 19:14:27 commit 0 last mr )
+Non-SSL connection (SSL connection is recommended when requiring high-security)
+Type "help" for help.
+
+# 查看数据库
+openGauss=# \db
+ List of tablespaces
+ Name | Owner | Location
+------------+-------+----------
+ pg_default | omm |
+ pg_global | omm |
+(2 rows)
+
+# 退出数据库
+openGauss-# \q
+```
+
+> 行文至此，我们已经携手成功安装了`openGauss数据库`这一卓越的**数据库管理系统**
+
+# 总结
+
+> `openGauss数据库`是一个**集高性能、高可用性和高安全性**于一身的==数据库解决方案==。`openGauss数据库`以其**分布式架构、智能优化技术和强大的数据安全保障能力**，在大数据和云计算时代中独树一帜，为各行各业提供了**稳定可靠的数据库服务**。期待你在未来的项目中，能够亲身体验到高斯数据库的出色表现！
+>
+> 如果你在阅读本文的过程中**收获满满**，觉得对你**有所帮助**，不妨**动动手指**，**为我点个赞吧**:grinning:!
+