I am trying to install HDP 2.5 on a 15 node cluster using Ambari. I made sure that all the nodes (including Ambari server node) running 'ntpd' using
systemctl enable ntpd
But during the installation,Ambari keep warning that all the hosts missing ntpd
ntpd Not running on 11 hosts.
How to fix this ?
To access Ambari server from my local machine, I have to use http proxy because the two networks are separated.Do I have to configure special setting in this case?
Can I ignore this warning and continue the instalattion since the ntpd service is acutally running ?
yes, thats what i did on all the nodes.
and "systemctl is-enabled ntpd" showed that ntpd is running.
To be able to install Ambari successfully all the servers in the cluster have to be in sync. The NTPD should be running
You should have installed pdsh for easier cluster management
Configure the NTPD services
# yum install ntp ntpdate
Turn on the ntpd service:
# chkconfig ntpd on
Synchronize the system clock with 0.pool.ntp.org server
# ntpdate pool.ntp.org
Check the NTPD services configure it start at system boot
# chkconfig --list ntpd
Hope that helps
@umangapdn I discovered (assuming you're using Centos 7) that you need to turn off a conflicting time service off -> chrony
sudo systemctl disable chronyd