Configure the password-free login
- Modify all host nodes
192.168.210.133 node1
192.168.210.134 node2
192.168.210.135 node3
192.168.210.136 node4
- Modify the host name of all nodes
vim /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=node2- Turn off the firewall
systemctl stop firewalld
systemctl disable firewalld- reboot
Start configuring optional login:
- Free dense core idea is: if B has server authorized_keys A public key server, then the server can avoid A secret log on B server.
First generation key several machines are:
# 安装ssh
yum -y install openssh-clients
rm -rf ~/.ssh/*
ssh-keygen -t rsa
# 一路回车,然后拷贝到授权文件
- In one of the machines
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys- Then performed on all other commands such as home several machines, each machine sends the key to the authorized_keys node1 machine to go :( Note that the user name, who is who log in)
ssh-copy-id -p 2121 root@node1 cat .ssh/authorized_keys
Testing can be free to log on ok.
Installation Time Synchronization
yum -y install ntp
ntpdate cn.pool.ntp.orgInstallation Ambari2.7.4
Take a look at the list of supported software
- After selection you can see https://supportmatrix.hortonworks.com/
The final preparation of the inventory software
| Package | version |
|---|---|
| operating system | CentOS7 |
| Ambari | 2.7.3 |
| HDP | 3.1.0.0 |
| MySQL | 5.7 |
| OracleJDK8 | JDK1.8.0_144 |