一键部署openGauss2.0.1 CentOS 7.6

一键部署 openGauss2.0.1[CentOS 7.6]
本文档目的是为了帮助高校学生提供基于 CentOS7.6 操作系统，实现 openGauss 数据库一键式安装的脚本。

该脚本执行成功后，所有关于 openGauss 数据库的文件将保存在/gaussdb 目录中。

脚本内容中“...”请替换为服务器实际的私有 IP 地址。

脚本内容中“...”请替换为服务器实际的私有 IP 地址。

脚本内容中“...”请替换为服务器实际的私有 IP 地址。

!/bin/bash

Author： 贾军锋

Date： 2021-04-15

OS: CentOS7.6 [最小硬件配置：2c/4G]

Database：openGauss 2.0.1

Description：一键式实现操作系统环境配置、openGauss软件下载、openGauss软件安装等步骤，帮助大家提升安装openGauss数据库效率

Tips: 请确保操作系统可以连接外网

0.关闭virbr0网卡 [本地虚拟机标准化安装openEuler系统会默认存在virbr0网卡，删除该网卡以避免干扰数据库的安装]

virsh net-destroy default

virsh net-list

echo "Net device virbr0 is disabled."

1.定义主机信息[请根据实际情况修改]

export MY_HOSTNAME=node1 ## 主机名
export MY_HOSTIP=... ## IP地址
export MY_SOFTWARE_DIRECTORY=/soft/openGauss ## 软件包所在目录
export MY_XML=/soft/openGauss/clusterconfig.xml ## 集群配置文件XML
export openGauss_Download_url=https://opengauss.obs.cn-south-1.myhuaweicloud.com/2.0.1/x86/openGauss-2.0.1-CentOS-64bit-all.tar.gz ## openGauss软件包下载地址

1. 设置主机名并配置hosts文件

hostnamectl set-hostname $MY_HOSTNAME
sed -i '/$MY_HOSTIP/d' /etc/hosts
echo "$MY_HOSTIP $MY_HOSTNAME #Gauss OM IP Hosts Mapping" >> /etc/hosts
cat /etc/hosts
echo "1.Configure /etc/hosts completed."
echo -e "\n"

2. 关闭防火墙

systemctl disable firewalld.service
systemctl stop firewalld.service
echo "Firewalld " systemctl status firewalld|grep Active
echo "2.Disable firewalld service completed."
echo -e "\n"

3. 关闭SELinux

sed -i '/^SELINUX=/d' /etc/selinux/config
echo "SELINUX=disabled" >> /etc/selinux/config
cat /etc/selinux/config|grep "SELINUX=disabled"
echo "3.Disable SELINUX completed."
echo -e "\n"

4. 设置操作系统字符集编码

echo "LANG=en_US.UTF-8" >> /etc/profile
source /etc/profile
echo $LANG
echo "4.Configure encoding completed."
echo -e "\n"

5. 设置操作系统时区

rm -fr /etc/localtime
ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
date -R
hwclock
echo "5.Configure Timezone completed."
echo -e "\n"

6. 关闭SWAP分区 [对于2G内存的设备，建议待安装完毕后再打开SWAP以间接 “扩容内存容量”]

sed -i '/swap/s/^/#/' /etc/fstab
swapoff -a
free -m
echo "6.Close swap partition completed."
echo -e "\n"

7. 配置SSH服务，关闭Banner，允许root远程登录

sed -i '/Banner/s/^/#/' /etc/ssh/sshd_config
sed -i '/PermitRootLogin/s/^/#/' /etc/ssh/sshd_config
echo -e "\n" >> /etc/ssh/sshd_config
echo "Banner none " >> /etc/ssh/sshd_config
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
cat /etc/ssh/sshd_config |grep -v ^#|grep -E 'PermitRoot|Banner'
echo "7.Configure SSH Service completed."
echo -e "\n"

8. 配置YUM源、安装依赖包、修改默认Python3版本

mkdir /etc/yum.repos.d/bak
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak/
wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo
yum clean all
yum install -y bzip2 python3
yum install -y libaio-devel flex bison ncurses-devel glibc-devel patch redhat-lsb-core readline-devel net-tools tar
mv /usr/bin/python /usr/bin/python2_bak
ln -s /usr/bin/python3 /usr/bin/python
python -V
echo "8.Configure Install Packages and change default Python version completed."
echo -e "\n"

9. 配置 sysctl.conf 和 performance.sh

cat >> /etc/sysctl.conf << EOF
net.ipv4.tcp_retries1 = 5
net.ipv4.tcp_syn_retries = 5
net.sctp.path_max_retrans = 10
net.sctp.max_init_retransmits = 10
EOF
sysctl -p
echo "9.Configure sysctl.conf and performance.sh completed."
echo -e "\n"

10. 配置资源限制

echo "* soft stack 3072" >> /etc/security/limits.conf
echo "* hard stack 3072" >> /etc/security/limits.conf
echo "* soft nofile 1000000" >> /etc/security/limits.conf
echo "* hard nofile 1000000" >> /etc/security/limits.conf
echo "* soft nproc unlimited" >> /etc/security/limits.d/90-nproc.conf
tail -n 4 /etc/security/limits.conf
tail -n 1 /etc/security/limits.d/90-nproc.conf
echo "10.Configure resource limits completed."
echo -e "\n"

11. 关闭透明大页[Only for CentOS]

cat >>/etc/rc.d/rc.local<<EOF
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
EOF
chmod +x /etc/rc.d/rc.local
/usr/bin/sh /etc/rc.d/rc.local
cat /sys/kernel/mm/transparent_hugepage/enabled
cat /sys/kernel/mm/transparent_hugepage/defrag
echo "11.Close transparent_hugepage completed."
echo -e "\n"

12. 禁用RemoveIPC[Only for openEuler]

sed -i '/^RemoveIPC/d' /etc/systemd/logind.conf

sed -i '/^RemoveIPC/d' /usr/lib/systemd/system/systemd-logind.service

echo "RemoveIPC=no" >> /etc/systemd/logind.conf

echo "RemoveIPC=no" >> /usr/lib/systemd/system/systemd-logind.service

systemctl daemon-reload

systemctl restart systemd-logind

loginctl show-session | grep RemoveIPC

systemctl show systemd-logind | grep RemoveIPC

echo "12.Disable RemoveIPC completed."

echo -e "\n"

13. 下载openGauss软件包

mkdir -p $MY_SOFTWARE_DIRECTORY
cd $MY_SOFTWARE_DIRECTORY
wget $openGauss_Download_url
echo "13.openGauss software download completed."
echo -e "\n"

14. 配置XML文件

rm -fr $MY_XML
cat >> $MY_XML <<EOF

    <!--dbnode-->
    <PARAM name="dataNum" value="1"/>
    <PARAM name="dataPortBase" value="26000"/>
    <PARAM name="dataNode1" value="/gaussdb/data/db1"/>
    </DEVICE>
</DEVICELIST>

EOF cat $MY_XML echo "14.Configure XML file completed." echo -e "\n"

15. 解压安装包并修改目录权限

echo "Begin to Uncompress openGauss Package and Modify directory permissions:"
cd $MY_SOFTWARE_DIRECTORY
tar -zxvf *all.tar.gz
tar -zxvf *om.tar.gz
ls -l
chmod -R 777 $MY_SOFTWARE_DIRECTORY/../
echo "15.Uncompress openGauss Package completed."
echo -e "\n"

16. 执行 gs_preinstall

echo "Begin to execute openGauss preinstall:"
python $MY_SOFTWARE_DIRECTORY/script/gs_preinstall -U omm -G dbgrp -X $MY_XML
echo "16.openGauss preinstall completed."
echo -e "\n"

17. 检查预安装环境

echo "Begin to Check OS environment:"
$MY_SOFTWARE_DIRECTORY/script/gs_checkos -i A -h $MY_HOSTNAME --detail

18. 执行 gs_install

echo "Begin to execute openGauss install:"
touch /home/omm/install_db
cat >> /home/omm/install_db <<EOF
source ~/.bashrc
gs_install -X $MY_XML --gsinit-parameter="--encoding=UTF8" --dn-guc="max_process_memory=3GB" --dn-guc="shared_buffers=128MB" --dn-guc="cstore_buffers=16MB"
EOF
chown -R omm:dbgrp /home/omm/install_db
su - omm -c "sh /home/omm/install_db"
echo "17.openGauss install completed."
echo -e "\n"

安装完毕！

echo "openGauss Install completed.congratulations"
echo "Congratulations!!!"