安装前环境调试

1.操作系统版本

cat /etc/redhat-release

2.处理器的架构

uname -m

3.CPU

3.1核数、超线程、numa组

lscpu

3.2CPU主频

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

如果不是performance，要调整为性能模式

cpupower -c all frequency-set -g performance

4.内存、swap

free -g

5.网络

5.1查看网卡信息

ip addr

5.2查看是否为万兆网卡

ethtool p1p2

5.3服务器之间的带宽

netperf -H 192.168.112.112 -l 30 -f M

5.4多实例部署临时添加虚拟ip，重启服务器后会失效

ifconfig bond1:1 10.10.55.105 broadcast 10.10.55.255 netmask 255.255.255.0 up

6.磁盘

6.1查看磁盘

fdisk -l

6.2查看挂载情况

df -h

6.3分区

parted /dev/sdb

6.4格式化

mkfs.xfs /dev/sdb1

6.5挂载

mount /dev/sdb1 /opt

df -h

6.6测性能

sh dd.sh

7.服务

7.1关防火墙

systemctl stop firewalld

systemctl disable firewalld

7.2关闭selinux

setenforce 0

vi /etc/selinux/config

SELINUX=disabled

7.3开启ssh服务

systemctl enable sshd.service

systemctl start sshd.service

7.4killall能正常使用

which killall

8.虚拟内存配置

ulimit -H -v unlimited

ulimit -S -v unlimited

9.磁盘调度

echo deadline > /sys/block/sdb/queue/scheduler

10.关闭透明大页

echo never > /sys/kernel/mm/transparent_hugepage/enabled

11.操作系统允许最大进程数

vi /etc/systemd/system.conf

DefaultTasksMax=infinity

12.配置开机自启

vim /etc/rc.d/rc.local

添加：

cpupower -c all frequency-set -g performance

ifconfig bond1:1 10.10.55.105 broadcast 10.10.55.255 netmask 255.255.255.0 up

mount /dev/sdb1 /opt

systemctl stop firewalld

setenforce 0

systemctl start sshd.service

ulimit -H -v unlimited

ulimit -S -v unlimited

echo deadline > /sys/block/sdb/queue/scheduler

echo never > /sys/kernel/mm/transparent_hugepage/enabled

su - gbase -c 'gcware_services all restart'

su - gbase -c 'gcluster_services all restart'

chmod +x /etc/rc.d/rc.local