I understood now that all basic components have to be deployed on available resources and later they should be moved to new nodes as and when they are added into cluster Thanq for your time ... View more

Thanq @Tom McCuch, Thanq so much. Sorry for late response, I have been travelling. ... View more

I have installed the hdfs client package manually , problem solved ofcourse I had to manually install nc rpm ... View more

I tried restarting (stop & start) all services in the cluster , during that process, the pending installation kicked off and wassuccessful I am not sure of the internal architecture ... View more

@jspeidel so if we want to install few additional services ABC after a cluster is setup with few XYZ services , it is not possible?? I am unsure of the technicalities but this way it will be a problem for companies running analytics as a service ... View more

I restarted the ambari-agent services and was able to reregister we also have an option of ambari-agent reset hdp_server_name this was also required on other 2 hosts ... View more

in my case, version of Ambari and Python mismatched, I installed a lower version of Ambari and it started to work ... View more

Thank you now the option of enabling HA is seen in 'service options' It could have been simpler if this kind of curl options are provided in GUI with a pasword proected and role based access control. I do understand the sensitivity behind this. thanks again. ... View more