03-08-2018 08:59 AM
Hi! Sorry for my English, i am from Rusiia and i am newbie on Cloudera. I have two VMs with installed cloudera quickstart VM, and i want to add second VM to cluster, but i have error on step when "Detecting Cloudera Manager Server".
03-08-2018 09:07 AM
03-08-2018 09:36 AM
1. It is not preinstalled, you need to install for example using Cloudera Manager
2. in tab Host or with Cloudera Manager you can view the nodes status.
At first it is not easy, ask if you need it
03-08-2018 10:00 AM
Based on the message, you are attempting to add a new host to the cluster by using the Add New Hosts to Cluster wizard.
When doing so, one of the steps is to see if the new host can resolve and communicate with the Cloudera Manager host.
This is failing in some way.
You can ssh to that host and look for the scm_prepare_node.log file in /tmp/scm_prepare_node directory to get more information about the failure.
Likely, there is a problem resolving your Cloudera Manager hostname from the new host. You might check that and make sure you can also connect to CM.
You can use the same command that the prepare script uses to test your connection:
python -c 'import socket; import sys; s = socket.socket(socket.AF_INET); s.settimeout(5.0); s.connect((sys.argv, int(sys.argv))); s.close();' <FQDN of your CM host> 7182
If there are no errors when running that command, you should be able to get by this issue.