Hadoop multinode cluster setup on ubantu using apache ambari

1. Pre-requsite

# setup password less ssh


# turn off iptables
https://help.ubuntu.com/community/IptablesHowTo#Configuration%20on%20startup

# disable silenix

# disable ipv6


2. Prepare for setup

cd /etc/apt/sources.list.d

 wget http://public-repo-1.hortonworks.com/ambari/ubuntu14/2.x/updates/2.2.2.0/ambari.list 

  apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD

  apt-get update

  apt-get install ambari-server

ambari-server setup

go with default

ambari-server start


Access ambari server using ip or localhost:8080

#How to completly uninstall ambari/hadoop

apt-get remove ambari-server
apt-get remove ambari-agent
apt-get purge postgresql

rm -rf /usr/lib/ambari-*
rm -rf /etc/ambari/*
rm -rf /var/log/ambar/*

http://www.yourtechchick.com/hadoop/how-to-completely-remove-and-uninstall-hdp-components-hadoop-uninstall-on-linux-system/

https://community.hortonworks.com/questions/1110/how-to-completely-remove-uninstall-ambari-and-hdp.html

 Ip points

# all serves should have all servers host entry in /etc/host
 # remove localhost details

# Start with basic setup(HDFS and Yarn+MapReduce) first