在CentOS 7上安装 openGauss 3 企业版（单节点）.pdf

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2023-08-22

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在 CentOS 7 上安装 openGauss 3.0 企业版

（单节点）

openGauss 是一个开源的关系型数据库管理系统。当前 openGauss 有三种

版本，提供了 centos_x86_64、openeuler_aarch64 和 openeuler_x86_64

平台的安装包。

安装前准备

1、配置主机名

hostnamectl set-hostname node1

2、关闭防火墙

systemctl stop firewalld

systemctl disable firewalld

3、禁用 SELinux

setenforce 0

sed -i 's/^SELINUX=enforcing$/SELINUX=disabled/' /etc/selinux/config

4、修改 /etc/sysctl.conf 文件

echo "net.ipv4.tcp_retries1 = 5" >> /etc/sysctl.conf

echo "net.ipv4.tcp_syn_retries = 5" >> /etc/sysctl.conf

echo "net.ipv4.tcp_synack_retries = 5" >> /etc/sysctl.conf

echo "net.ipv4.ip_local_port_range = 26000 65535" >> /etc/sysctl.conf

echo "net.ipv4.tcp_fin_timeout = 60" >> /etc/sysctl.conf

echo "net.ipv4.tcp_sack = 1" >> /etc/sysctl.conf

echo "net.ipv4.tcp_timestamps = 1" >> /etc/sysctl.conf

echo "vm.extfrag_threshold = 500" >> /etc/sysctl.conf

echo "vm.overcommit_ratio = 90" >> /etc/sysctl.conf

sysctl -p

5、修改 /etc/security/limits.conf 文件

echo "* soft nofile 1000000" >> /etc/security/limits.conf

echo "* hard nofile 1000000" >> /etc/security/limits.conf

6、修改网卡 MTU

echo "8192" > /sys/class/net/ens32/mtu

7、设置 root 用户远程登录

将 /etc/ssh/sshd_config 文件中 #PermitRootLogin 前的注释去掉

sed -i 's/^#PermitRootLogin yes$/PermitRootLogin yes/'

/etc/ssh/sshd_config

systemctl restart sshd.service

8、安装依赖

yum install -y bzip2 python3 libaio-devel flex bison ncurses-devel

glibc-devel patch redhat-lsb-core readline-devel

9、创建安装目录

mkdir -p /opt/software/openGauss

chmod 755 -R /opt/software

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