Hello Friends My Name is Mohit Talpara and To'day i am Showing You How To install apache hadoop cluster cdh4 cloudera digitalocean <br /> <br />we choose digitalocean because his Provided Kvm Virtualization, Shared Private Networking, ECC Ram and RAID SSD storage and Tier-1 Bandwidth All servers come with 1Gb/sec so its best configration for Clusters and is chepest then other provider so we always say to used digitalocean for Cluster Stability. <br /> <br />Now First You Need To Creat Some Node in Digitalocean Control Panel and Setup DNS For Eatch one . <br /> <br />in my Tutorial i am used 4 Droplets with 1GB Memory and 30GB Disk Space and setup host name for eatch one <br /> <br />so now i have 4 Droplets with this host name <br /> <br />node1.datatube.co.in 192.241.162.77 <br />node2.datatube.co.in 162.243.80.11 <br />node3.datatube.co.in 162.243.81.68 <br />node4.datatube.co.in 162.243.82.23 <br /> <br />now Chabged Password Of All Node And Created New Same Password For All Users Because in cloudera Setup i will choose root password authentication option <br /> <br />now Fisrt Login In To All Droplets Using SSH <br /> <br />And Update Yum Using This Command <br /> <br />yum -y install perl openssh-clients <br /> <br />Now Edit Host File For Add All Cluster Nodes Please Note Its My Configration You Need To Add Your Own Host Domain Name. <br /> <br />Edit Host File using This Command <br />nano /etc/hosts <br /> <br />And Add This Config in host file please note do not delete any existing host just add new host <br /> <br />192.241.162.77 node1.datatube.co.in n1 <br />162.243.80.11 node2.datatube.co.in n2 <br />162.243.81.68 node3.datatube.co.in n3 <br />162.243.82.23 node4.datatube.co.in n4 <br /> <br />Now Edit /etc/resolv.conf File Using This Command.[It is use to configure client side access to the Internet Domain Name System (DNS). This file defines which name servers to use.] <br /> <br />nano /etc/resolv.conf <br /> <br />Now Delete All Data in file and Add This Data <br /> <br />search datatube.co.in <br />nameserver 8.8.8.8 <br /> <br />Now Edit Network using This Commands <br /> <br />nano /etc/sysconfig/network <br /> <br />Delete All Config and Add this Following Config [Please Not in this config HOSTNAME= is Your server(drop) Host Name So change with your Server Host Name] <br /> <br />NETWORKING=yes <br />HOSTNAME=node1.datatube.co.in <br />GATEWAY=8.8.8.8 <br /> <br />Now Edit selinux Configration using This Command <br />nano /etc/selinux/config <br /> <br />And See In This File this option SELINUX is disabled <br />SELINUX=disabled <br /> <br />Now Check Your Iptables off <br /> <br />chkconfig iptables off <br /> <br />Now Edit Yum Config Disable For fastestmirror checking.So edit fastestmirror.conf file using this Commandline <br /> <br />nano /etc/yum/pluginconf.d/fastestmirror.conf <br /> <br />edit in config file enabled=1 to enabled=0 <br /> <br />enabled=0 <br /> <br />And After Restart The Network using This Command <br /> <br />/etc/init.d/network restart <br /> <br />now edit ssh config file For Stop To Check Hostkey using This Command <br />nano /etc/ssh/ssh_config <br /> <br />edit in Config File StricHostkeyChecking no <br /> <br />StricHostkeyChecking no <br /> <br />now All Node Is Ready For Install Cloudera manager So just install in only main node using This Command <br /> <br />wget http://archive.cloudera.com/cm4/insta... <br /> <br />chmod +x cloudera-manager-installer.bin <br /> <br />./cloudera-manager-installer.bin <br /> <br />Now Followin
