VMware Workstation14 安装Ubuntu 16.04 Server版集群

1、下载Ubuntu server

https://www.ubuntu.com

https://www.ubuntu.com/download/alternative-downloads
http://releases.ubuntu.com/16.04/ubuntu-16.04.4-server-amd64.iso.torrent

下载16.04 server版备用。

2、建立虚拟机

选择自定义类型

采用简易方式安装。

因为要搭建hadoop集群，所以命名才用hadoop系列。

虚拟机才用2核4g的配置。

网路采用nat模式，可以访问外网，可以内网互相访问。

3、安装Ubuntu16.04

开启虚拟机后自动安装。

开机

Ubuntu安装完成。

4、配置系统

开启root账户

sudo passwd root
设置密码为hadoop

安装ssh服务

apt-get install openssh-server
设置允许超级管理员远程访问

# vi /etc/ssh/sshd_config
找到并用#注释掉这行：PermitRootLogin prohibit-password

新建一行 添加：PermitRootLogin yes

重启服务

# service ssh restart

设置网络桥接方式。

配置固定ip

/etc/network/interfaces

auto ens33
iface ens33inet static  
address 192.168.1.151  
gateway 192.168.1.1  
netmask 255.255.255.0  

配置dns

vi /etc/resolvconf/resolv.conf.d/base

nameserver 119.29.29.29
nameserver 182.254.116.116

配置hosts

/etc/hosts

#主机信息
192.168.1.151     hadoop01
192.168.1.152     hadoop02
192.168.1.153     hadoop03
192.168.1.154     hadoop04
192.168.1.155     hadoop05

配置hostname

/etc/hostname

hadoop01

修改最大线程数

vim /etc/security/limits.conf

root             soft         nofile      10240
root             hard       nofile      10240
root             soft       noproc      10240
root             hard       noproc      10240

设置时区

sudo tzselect 

sudo cp /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime

设置ntp

sudo apt-get install ntp
service ntp start

安装jdk1.8

自带安装
apt install openjdk-8-jdk-headless
修改etc/profile

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOMR}/bin:$PATH

配置生效

source /etc/profile

5、复制虚拟机

在虚拟机1上选择管理、克隆即可

更改每台复制机的ip地址和hostname

6、建立互信集群

生成密钥（主机全部执行一遍)

hadoop@hadoop01:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa): 
Created directory '/home/hadoop/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:3QfoHhnfu/GwcJ0zKNWIYYq7cCQko6vZjdAP47lR1cA hadoop@hadoop01
The key's randomart image is:
+---[RSA 2048]----+
|     ..          |
|      Eo   .     |
|   o .. . oo.    |
|  . +.  .oo=ooo  |
| .  .. oS.=.ooo. |
| ...  o .. ....o.|
|..=  . o  ....=+.|
|.= O  o .   .o *o|
|o *.o  .      o .|
+----[SHA256]-----+

传给互信主机

scp ~/.ssh/authorized_keys hadoop01:/root/.ssh/authorized_keys
scp ~/.ssh/authorized_keys hadoop02:/root/.ssh/authorized_keys
scp ~/.ssh/authorized_keys hadoop03:/root/.ssh/authorized_keys
scp ~/.ssh/authorized_keys hadoop04:/root/.ssh/authorized_keys
scp ~/.ssh/authorized_keys hadoop05:/root/.ssh/authorized_keys

本章结束！