Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

network error on the "confirm host" phase of the ambari installation wizard

network error on the "confirm host" phase of the ambari installation wizard

New Contributor

I was executiondg the lab 1 of the "ADM-221 | HDP Operations: Administration Foundation (SPLL)" course, but unfortunately it goes wrong
I have 6 small servers used to install a test cluster (1 edge + 2 masters + 3 slaves). the result of the confirm host phase as shown below: (h01.png)

the logs:

INFO 2018-01-02 18:16:23,972 PingPortListener.py:50 - Ping port listener started on port: 8670
INFO 2018-01-02 18:16:23,975 main.py:437 - Connecting to Ambari server at https://master1.2tk.fr:8440 (192.168.1.11)
INFO 2018-01-02 18:16:23,975 NetUtil.py:70 - Connecting to https://master1.2tk.fr:8440/ca
WARNING 2018-01-02 18:16:23,977 NetUtil.py:101 - Failed to connect to https://master1.2tk.fr:8440/ca due to [Errno 111] Connection refused  
WARNING 2018-01-02 18:16:23,977 NetUtil.py:124 - Server at https://master1.2tk.fr:8440 is not reachable, sleeping for 10 seconds...
", None)

Connection to master2.2tk.fr closed.
SSH command execution finished
host=master2.2tk.fr, exitcode=0
Command end time 2018-01-02 18:16:26

Registering with the server... 

Registration with the server failed.

I have setup the password-less configuration and all the pre-configuration purpose defined inside the ambari installation guide (https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.0.0/bk_ambari-installation/content/prepare_the_...)

Any idea

45704-h01.png

2 REPLIES 2
Highlighted

Re: network error on the "confirm host" phase of the ambari installation wizard

Rising Star

It looks like SSH is working.

This usually is DNS related; do you have the hosts file set on all the nodes? Do you have the firewall/iptables disabled?

Re: network error on the "confirm host" phase of the ambari installation wizard

New Contributor

Thank you for your answer.

In fact, I have tried to re-install HDP by using a new server as the ambari server... the 2 server which was sucessfully confirmed was the 2 servers I have to re-installed (centos 7)... the others was trying to connect to the previous ambari server... I have re-installed all the other servers with centos 7 and it is running well...

Georges