You may be in a bind if you need to install HDP on Azure with CentOS 6 or RHEL 6 and certain services (not everything). By following these steps below, you will be able to use ambari-server to install HDP on any of the supported Hortonworks/Azure VMs.
1) Configure your VMs - use the same VNet for all VMs
* use the FQDN (find the fqdn by typing hostname -f). The ip address are internal and can be found on eth0 by typing ifconfig
3) Edit /etc/sudoers.d/waagent so that you don't need to type a password when sudoing
a) change permissions on /etc/sudoers.d/waagent:
chmod 600 /etc/sudoers.d/waagent
b) update the file "username ALL = (ALL) ALL" to "username ALL = (ALL) NOPASSWD: ALL":
vi /etc/sudoers.d/waagent
c) change permissions on /etc/sudoers.d/waagent:
chmod 440 /etc/sudoers.d/waagent
* change username to the user that you sudo with (the user that will install Ambari)
3) Disable iptables
a) service iptables stop
b) chkconfig iptables off
* If you need iptables enabled, please make the necessary port configuration changes found here
4) Disable transparent huge pages
a) Run the following in your shell:
cat > /usr/local/sbin/ambari-thp-disable.sh <<-'EOF'
#!/usr/bin/env bash
# disable transparent huge pages: for Hadoop
thp_disable=true
if [ "${thp_disable}" = true ]; then
for path in redhat_transparent_hugepage transparent_hugepage; do
for file in enabled defrag; do
if test -f /sys/kernel/mm/${path}/${file}; then
echo never > /sys/kernel/mm/${path}/${file}
fi
done
done
fi
exit 0
EOF
b) chmod 755 /usr/local/sbin/ambari-thp-disable.sh
c) sh /usr/local/sbin/ambari-thp-disable.sh
* Perform a-c on all hosts to disable transparent huge pages
5) If you don't have a private key generated (where the host running ambari-server can use a privat key to login to all the hosts - please perform this step)
a) ssh-keygen -t rsa -b 2048 -C "username@master1.jd32j3j3kjdppojdf3349dsfeow0.dx.internal.cloudapp.net"
b) ssh-copy-id -i /locationofgeneratedinaabove/id_rsa.pub username@master1
* Run b above on all hosts, this way you can ssh using the username into all hosts from the ambari-server host without a password
6) Install the ambari repo on the server where you'll install Ambari (documentation):
