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01-linux平台搭建.md

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linux 平台搭建

0.虚拟机及 IP 规划

  • 虚拟网卡 VMNet8 网段 192.168.100.0/24
名称 IP 描述
windows 192.168.100.1/24 物理机
gateway 192.168.100.2/24 虚拟网关
hadoop100 192.168.100.100/24 模板虚拟机
hadoop102 192.168.100.102/24
hadoop103 192.168.100.103/24
hadoop104 192.168.100.104/24

1.安装 Linux 虚拟机

CentOS7

2.配置虚拟网关(可选)

略

3.配置 Windows 虚拟网卡(可选)

略

4.添加 hadoop 用户并设置 sudo(可选)

useradd hadoop
passwd hadoop
vim /etc/sudoers
# 在 %wheel  ALL=(ALL)       ALL 下面
hadoop  ALL=(ALL)       NOPASSWD: ALL

5.配置 Linux 静态 IP(可选)

sudo vim /etc/sysconfig/network-scripts/ifcfg-ens33
# 删除UUID
IPADDR="192.168.100.100"
GATEWAY="192.168.100.2"
DNS1="192.168.100.2"

6.修改主机名称(可选)

sudo vim /etc/hostname
hadoop102

7.修改 hosts 文件(可选)

sudo vim /etc/hosts
192.168.100.102 hadoop102
192.168.100.103 hadoop103
192.168.100.104 hadoop104
sudo reboot
  • windows 相同配置
  • C:/Windows/System32/drivers/etc/hosts

8.ssh 免密登录(可选)

# linux
ssh-keygen
ssh-copy-id 127.0.0.1
# windows
ssh-keygen.exe
scp $env:UserProfile\.ssh\id_rsa.pub hadoop@hadoop100:~/.ssh/keys
# linux
cd ~/.ssh
cat keys >> authorized_keys

9.集群分发脚本(可选)

mkdir ~/bin
vim ~/bin/xsync.sh
#!/bin/bash
if [ $# -lt 1 ]
then
    echo "参数不足"
    exit
fi
for host in hadoop102 hadoop103 hadoop104
do
    echo "================ $host ================"
    for file in $@
    do
        if [ -e $file ]
        then
            pdir=$(cd -P $(dirname $file); pwd)
            fname=$(basename $file)
            ssh $host "sudo mkdir -p $pdir"
            rsync -av $pdir/$fname $USER@$host:$pdir
        else
            echo "$file 不存在"
        fi
    done
done
chmod 700 ~/bin/xsync.sh

10.卸载默认的 Java(可选)

rpm -qa | grep java-1.8.0
rpm -qa | grep java-1.8.0 | xargs sudo rpm -e --nodeps

11.上传安装包到 Linux 上(可选)

cd /opt
sudo mkdir software module
sudo chown hadoop:hadoop module software
scp .\*.gz hadoop@hadoop100:/opt/software

12.关闭防火墙(可选)

sudo systemctl stop firewalld.service
sudo systemctl disable firewalld.service
sudo systemctl status firewalld.service