Install HDP 2.5 using Ambari 2.4 on AWS Fails

[#1]

Hi,

Except for the instance that has Ambari Server and Agent running I can't install HDP 2.5 using Ambari 2.5. I've installed the agents manually successfully. I'm not sure I ave the /etc/hosts file right. I'm using <private IP> <pribate DNS> and the <private DNS> in the Ambari GUI. But they fail to install all except the instance that has Ambari Server runnning.

I'm using Centos 7. Any ideas?

[#2]

I notice it launches 2 /usr/bin/python /usr/lib/python2.6/site-packages/ambari_agent/main.py scripts ??

[root@ec2-xxxxx ec2-user]# ps aux | grep ambari

root 16253 0.0 0.1 385276 17736 ? Sl 04:19 0:00 /usr/bin/python /usr/lib/python2.6/site-packages/ambari_agent/main.py start --expected-hostname=ec2-xxxxx.ap-southeast-2.compute.amazonaws.com

root 16344 0.0 0.0 112648 960 pts/3 S+ 04:39 0:00 grep --color=auto ambari

[root@ec2-xxxx ec2-user]# ps aux | grep ambari

root 16253 0.0 0.1 385276 17736 ? Sl 04:19 0:00 /usr/bin/python /usr/lib/python2.6/site-packages/ambari_agent/main.py start --expected-hostname=ec2-xxxx.ap-southeast-2.compute.amazonaws.com

root 16346 0.0 0.0 112648 956 pts/3 S+ 04:39 0:00 grep --color=auto ambari

[#3]

@David Sheard I am facing the same issue, please let me know in case you were able to resolve it.

[#4 · Accepted solution]

Ok sorted

yum remove ambari-agent on the servers where I did a manual install and rerun using Ambari

[#5]

@David Sheard @Saisubramaniam Gopalakrishnan

Public IPv4 addresses enable communication over the Internet, while private IPv4 addresses enable communication within the network of the instance (either EC2-Classic or a VPC)

Can you try using the private IP's in the /etc/hosts on all the hosts and retry.

1x2.31.83.454                   ip-1xx-x1-2x-1xx.ap.southeast-2.compute.internal       
1x2.91.27.784                   ip-2xx-x1-2x-1xx.ap.southeast-2.compute.internal 

Please let me know