Build a Hadoop 2.7.3 cluster in CentOS 6.7

Build a Hadoop 2.7.3 cluster in CentOS 6.7

Hadoop clusters have three operating modes: Standalone mode, pseudo distribution mode, and full distribution mode. Here we set up the third full distribution mode, that is, using a distributed system to run on multiple nodes.

1. Configure DNS in Environment 1.1

Go to the configuration file and add the ip ing between the master node and the slave node:

# Vim/etc/hosts10.0.0.45 master10.0.0.46 slave110.0.0.47 slave2

1.2 disable Firewall

# Service iptables stop // close the service

# Chkconfig iptables off // disable auto-start upon startup

1.3 configure password-free Login

(1) Each node first enters the/root/. ssh directory to generate the key:

#