gistfile1.txt

--set static ip
DEVICE=eth0
HWADDR=00:0C:29:2D:08:6D
TYPE=Ethernet
UUID=551f9054-0ded-4ff0-a77a-387effe5924b
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.1.12.81
NETMASK=255.255.255.0
GATEWAY=10.1.12.1
NAMESERVER=8.8.8.8
NETWORKING=yes
HOSTNAME=node1.hadoop

## Configure DNS Server
#
# vi /etc/resolv.conf
 
nameserver 8.8.8.8      # Replace with your nameserver ip
nameserver 10.3.9.254  # Replace with your nameserver ip

--set proxy
export http_proxy=http://10.1.7.55:8080
export no_proxy=localhost,127.0.0.1,.hadoop

--set proxy yum
vi /etc/yum.conf
proxy=http://10.1.7.55:8080

--set hosts
vi /etc/hosts
ip hostname
10.1.12.71 ambari.hadoop
10.3.9.241 node1.hadoop
10.3.9.242 node2.hadoop
10.3.9.243 node3.hadoop
10.3.9.244 node4.hadoop


--copy ssh key from ambari to node
http://www.thegeekstuff.com/2008/11/3-steps-to-perform-ssh-login-without-password-using-ssh-keygen-ssh-copy-id/


--update yum
yum update -y

--install ntp
yum install ntp
add ntp to check config :  
chkconfig ntpd on



--disable iptables (ip4/ip6)
chkconfig iptables off
/etc/init.d/iptables stop
chkconfig ip6tables off
/etc/init.d/ip6tables stop
setenforce 0
--disable selinux
setenforce 0
vi /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#       enforcing - SELinux security policy is enforced.
#       permissive - SELinux prints warnings instead of enforcing.
#       disabled - SELinux is fully disabled.
SELINUX=disabled 
# SELINUXTYPE= type of policy in use. Possible values are:
#       targeted - Only targeted network daemons are protected.
#       strict - Full SELinux protection.
SELINUXTYPE=targeted

-- Config performence
sysctl -w vm.swappiness=0

-------------------------------
restart
-------------------------------
config hue

-------------------------------
reference:
https://ambari.apache.org/1.2.2/installing-hadoop-using-ambari/content/ambari-chap1.html
http://docs.hortonworks.com/HDPDocuments/HDP1/HDP-1.3.2/bk_installing_manually_book/content/rpm-chap-hue-1.html



# Shrink /home partition
df -h
umount /dev/mapper/vg_xxx_home
e2fsck -f /dev/mapper/vg_xxx_home
resize2fs /dev/mapper/vg_xxx_home 5G
lvreduce -L 5G /dev/mapper/vg_xxx_home
mount /dev/mapper/vg_xxx_home /home

# Increase /root partition
df -h
lvextend -l 100%FREE /dev/mapper/vg_xxx_root
resize2fs /dev/mapper/vg_xxx_root

# Check again and reboot
df -h
sudo reboot

// add an resize disk
http://unix.stackexchange.com/questions/42857/how-to-extend-centos-5-partition-on-vmware

mount new partiation

# Format the hard drive
sudo mkfs -t ext4 /dev/vdb # create the filesystem as type ext4

# Inspect the results
sudo parted -l

mount /dev/vdb /home