hadoop configure

1. vi /etc/hosts

192.168.0.71 hadoop-master 
192.168.0.72 hadoop-slave1 
192.168.0.73 hadoop-slave2

2. set ssh connect no need password(master and salve)

ssh-keygen -t rsa

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

 3. set env virables

vi /etc/profile

export HADOOP_HOME=/usr/local/hadoop
export PATH=$PATH:$HADOOP_HOME/bin

source /etc/profile

3. edit config files

  http://www.ityouknow.com/hadoop/2017/07/24/hadoop-cluster-setup.html