[root@localhost ~]# cd /soft/

[root@localhost soft]# ls

openGauss-3.0.0-CentOS-64bit-all.tar.gz

[root@localhost soft]# tar -zxvf openGauss-3.0.0-CentOS-64bit-all.tar.gz

openGauss-3.0.0-CentOS-64bit-cm.tar.gz

openGauss-3.0.0-CentOS-64bit-om.tar.gz

openGauss-3.0.0-CentOS-64bit.tar.bz2

openGauss-3.0.0-CentOS-64bit-cm.sha256

openGauss-3.0.0-CentOS-64bit-om.sha256

openGauss-3.0.0-CentOS-64bit.sha256

upgrade_sql.tar.gz

upgrade_sql.sha256

yum install libaio-devel flex bison ncurses-devel glibc-devel patch redhat-lsb-core readline-devel libnsl python3

systemctl status firewalld.service

systemctl stop firewalld.service

systemctl status firewalld.service

systemctl disable firewalld.service

vi /etc/selinux/config

#修改“SELINUX”的值“disabled”

#需要重启生效，也可以使用命令临时生效：setenforce 0

[root@localhost ~]# ssh-keygen -t rsa

[root@localhost ~]# cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

#使用ssh命令不需要输入密码的时候就表示互信成功

[root@localhost .ssh]# ssh 172.20.10.8

Last login: Wed Sep 14 17:40:53 2022 from opengauss

#单节点安装

[root@opengauss soft]# cat cluster_config.xml

<?xml version="1.0" encoding="UTF-8"?>

<ROOT>

<!-- openGauss整体信息 -->

<CLUSTER>

<!-- 数据库名称 -->

<PARAM name="clusterName" value="dbsingle" />

<!-- 数据库节点名称(hostname) -->

<PARAM name="nodeNames" value="opengauss" />

<!-- 数据库安装目录-->

<PARAM name="gaussdbAppPath" value="/opt/random/install/app" />

<!-- 日志目录-->

<PARAM name="gaussdbLogPath" value="/var/log/omm" />

<!-- 临时文件目录-->

<PARAM name="tmpMppdbPath" value="/opt/random/tmp" />

<!-- 数据库工具目录-->

<PARAM name="gaussdbToolPath" value="/opt/random/install/om" />

<!-- 数据库core文件目录-->

<PARAM name="corePath" value="/opt/random/corefile" />

<!-- 节点IP，与数据库节点名称列表一一对应 -->

<PARAM name="backIp1s" value="172.20.10.8"/>

</CLUSTER>

<!-- 每台服务器上的节点部署信息 -->

<DEVICELIST>

<!-- 节点1上的部署信息 -->

<DEVICE sn="opengauss">

<!-- 节点1的主机名称 -->

<PARAM name="name" value="opengauss"/>

<!-- 节点1所在的AZ及AZ优先级 -->

<PARAM name="azName" value="AZ1"/>

<PARAM name="azPriority" value="1"/>

<!-- 节点1的IP，如果服务器只有一个网卡可用，将backIP1和sshIP1配置成同一个IP -->

<PARAM name="backIp1" value="172.20.10.8"/>

<PARAM name="sshIp1" value="172.20.10.8"/>

<!--dbnode-->

<PARAM name="dataNum" value="1"/>

<PARAM name="dataPortBase" value="15400"/>

<PARAM name="dataNode1" value="/opt/random/install/data/dn"/>

<PARAM name="dataNode1_syncNum" value="0"/>

</DEVICE>

</DEVICELIST>

</ROOT>

tar -zxvf openGauss-3.0.0-CentOS-64bit-all.tar.gz

tar -zxvf openGauss-3.0.0-CentOS-64bit-om.tar.gz

#会解压出script文件夹

#进入刚才解压得到的script文件夹cd /soft/script

./gs_preinstall -U omm -G dbgrp -X /soft/cluster_config.xml

#期间只需要输入是否需要创建omm用户，选择yes，并且输入omm的密码

[root@opengauss script]# ./gs_preinstall -U omm -G dbgrp -X /soft/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

Please enter password for cluster user.

Password:

Please enter password for cluster user again.

Password:

Generate cluster user password files successfully.

Successfully created [omm] user on all nodes.

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.

Warning: Installation environment contains some warning messages.

Please get more details by "/soft/script/gs_checkos -i A -h opengauss --detail".

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.

su - omm

[root@opengauss script]# su - omm

Last login: Wed Sep 14 18:50:50 CST 2022

[omm@opengauss ~]$ gs_install

[GAUSS-50001] : Incorrect parameter. Parameter '-X' is required.

[omm@opengauss ~]$ ^C

[omm@opengauss ~]$ gs_install -X /soft/cluster_config.xml

Parsing the configuration file.

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:

Please repeat for database:

begin to create CA cert files

The sslcert will be generated in /opt/random/install/app/share/sslcert/om

NO cm_server instance, no need to create CA for CM.

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.

Successfully started cluster.

Successfully installed application.

end deploy..

[omm@opengauss ~]$

[omm@opengauss ~]$ gsql -d postgres -p 15400

gsql ((openGauss 3.0.0 build 02c14696) compiled at 2022-04-01 18:12:34 commit 0 last mr )

Non-SSL connection (SSL connection is recommended when requiring high-security)

Type "help" for help.

openGauss=#