环境说明
操作系统版本 |
PG数据库版本 |
RHEL 7.6 |
PG12.5 |
操作系统配置
/etc/hosts配置
hostnamectl set-hostname pgdb
cat >> /etc/hosts <<EOF
192.1683.56.11 pgdb
EOF
关闭NetworkManager
systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl status NetworkManager
关闭防火墙和Selinux
systemctl stop firewalld.service
systemctl disable firewalld.service
sed -i "s/^SELINUX=.*$/SELINUX=disabled/" /etc/selinux/config
关闭Numa配置
# 添加numa=off到内核中
grubby --args=numa=off --update-kernel /boot/vmlinuz-3.10.0-862.el7.x86_64
# 查看内核参数信息
grubby --info /boot/vmlinuz-3.10.0-862.el7.x86_64
# 重启服务器
sync
sync
sync
reboot now
内核参数配置
cat >> /etc/sysctl.conf <<-EOF
#1/2 of physical memory (1024*1024*1024)
kernel.shmmax = 1073741824
#physical memory size / pagesize, most set to 2097152
kernel.shmall = 2097152
#default set to 4096
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
ne