虚拟机安装
准备文件系统
LVM
pvcreate /dev/sdb
vgcreate datavg /dev/sdb
lvcreate -n datalv -L 200000M datavg
mkfs.xfs /dev/datavg/datalv
cat >> /etc/fstab << EOF
/dev/datavg/datalv /opengauss xfs defaults,noatime,nodiratime,nobarrier 0 0
EOF
cat /etc/fstab
10.
mkdir /opengauss
mount /opengauss
mkdir -p /opengauss/{opengaussdb,archive,scripts,backup,soft}
:::
创建用户
groupadd opengauss
useradd -g opengauss -d /home/opengauss -m -s /bin/bash opengauss
echo "opengauss" |passwd --stdin opengauss
chown -R opengauss:opengauss /opengauss
su - opengauss
vi ~/.bash_profile
su - opengauss
vi ~/.bash_profile
export LANG=en_US.UTF8
export PS1="[
whoami
@
hostname
:"'$PWD]$'
export GAUSSHOME=/opengauss/opengaussdb/app
export LD_LIBRARY_PATH=/opengauss/opengaussdb/app/lib
export PATH=/opengauss/opengaussdb/app/bin:$PATH:$HOME/.local/bin:$HOME/bin
exit
source ~/.bash_profile
:::
修改主机参数
#修改启动级别
systemctl set-default multi-user.target
#修改/etc/security/limits.conf
cat >> /etc/security/limits.conf << EOF
- soft nproc 65535
- hard nproc 65535
- soft nofile 65535
- hard nofile 65535
- soft stack 65535
- hard stack 65535
- hard memlock unlimited
- soft memlock unlimited
EOF
cat /etc/security/limits.conf
#修改 /etc/sysctl.conf
echo "vm.swappiness=1" >> /etc/sysctl.conf
echo "fs.aio-max-nr = 1048576" >> /etc/sysctl.conf
echo "fs.file-max = 6815744" >> /etc/sysctl.conf
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.tcp_retries2=12" >> /etc/sysctl.conf
echo "net.ipv4.ip_local_port_range=26000 65535" >> /etc/sysctl.conf
echo "vm.min_free_kbytes=512000" >> /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
echo "kernel.sem = 250 32000 100 999" >> /etc/sysctl.conf
sysctl -p
#修改/etc/security/limits.d/20-nproc.conf
sed -i 's/4096/65535/g' /etc/security/limits.d/20-nproc.conf
:::
#设置时区
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
hwclock
#禁用selinux
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
setenforce 0
#关闭防火墙
systemctl disable firewalld.service
systemctl stop firewalld.service
#关闭透明大页
cp /etc/default/grub /etc/default/grub_bak
line_num=
cat -n /etc/default/grub | grep 'GRUB_CMDLINE_LINUX' |awk '{print $1}'|head -n 1
sed -i --follow-symlinks 's/transparent_hugepage=never//g' /etc/default/grub
sed -i --follow-symlinks ""${line_num}" s/\"$/ transparent_hugepage=never\"/g" /etc/default/grub
#生效grub配置
grub2-mkconfig -o /boot/grub2/grub.cfg
#禁用RemoveIPC
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
#配置yum源并安装依赖
mount /dev/cdrom /mnt
cd /etc/yum.repos.d
mkdir bk
mv *.repo bk/
echo "[EL7-1]" > /etc/yum.repos.d/itpux.repo
echo "name =Linux-7" >> /etc/yum.repos.d/itpux.repo
echo "baseurl=file:///mnt" >> /etc/yum.repos.d/itpux.repo
echo "gpgcheck=0" >> /etc/yum.repos.d/itpux.repo
echo "enabled=1" >> /etc/yum.repos.d/itpux.repo
yum install -y libaio-devel libnsl flex bison ncurses-devel glibc-devel patch readline-devel
yum install -y net-tools tar bzip2 python3 cmake make gcc zlib gcc-c++ perl zlib-devel tcl openssl openldap pam
:::
克隆三个虚拟机备用
opengauss01、opengauss02、opengauss03
192.168.75.61、192.168.75.62、192.168.75.63
分别修改3台主机的IP地址和MAC地址
vim /etc/sysconfig/network-scripts/ifcfg-ens33
#修改hostname
hostnamectl --static set-hostname opengauss01
#修改/etc/hosts
echo "127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4"> /etc/hosts
echo "::1 localhost localhost.localdomain localhost6 localhost6.localdomain6">> /etc/hosts
echo "192.168.75.61 opengauss01">> /etc/hosts
echo "192.168.75.62 opengauss02">> /etc/hosts
echo "192.168.75.63 opengauss03">> /etc/hosts