Ubuntu18.04 安装部署 ambari 2.7.3 + HDP3.1.0 搭建Hadoop集群

Ubuntu18.04 安装部署 ambari 2.7.3 HDP3.1.0 搭建Hadoop集群

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一.节点准备

#关闭防火墙
sudo ufw disable

1.修改hosts配置

sudo vim /etc/hosts

添加如下内容

192.168.1.101 hadoop1
192.168.1.102 hadoop2
192.168.1.103 hadoop3

2.配置免密
2.1 执行 ssh-keygen
如下:三台都需要执行

root@hadoop1:~# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:2MRn3ranRz0AFjMqx1t3Qk5QibTnPrw zR9MY9ftu6s root@hadoop1
The key's randomart image is:
 ---[RSA 2048]---- 
|          .*= .  |
|       .. . B.   |
|       .o  o.= . |
|        o o. .o o|
|      . S.. o..= |
|           .o.=o |
|            .= oo|
|               oo|
|            oEo =|
 ----[SHA256]----- 

2.2 在hadoop1 进入root用户 执行 ssh-copy-id 命令

ssh-copy-id hadoop1
ssh-copy-id hadoop2
ssh-copy-id hadoop3

期间需要输入root密码，完成后 hadoop1 root用户就可以免密登录 hadoop1、hadoop2、hadoop3这三台机器了。如果需要其他两台也免密登录其他机器可以执行以上命令

二、安装mysql（如果已有可连的mysql库就不需要安装啦）

1.安装mysql

sudo apt install mysql-server mysql-client
sudo systemctl enable mysql
sudo systemctl start mysql

默认账号密码在文件/etc/mysql/debian.cnf 中。内容如下

ubuntu@ubuntu-1804-2:/etc/apt/sources.list.d$ sudo cat /etc/mysql/debian.cnf 
# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host     = localhost
user     = debian-sys-maint
password = 0cBYq68fUGyFCpPw
socket   = /var/run/mysqld/mysqld.sock
[mysql_upgrade]
host     = localhost
user     = debian-sys-maint
password = 0cBYq68fUG

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