Oozie Error does not exist MapRFS
I suggest you read Adding Disks
Have you also done the training at MapR Academy
What services are mandatory to have at that time in a node and the link you shared is not useful to this question.
They are useful to your question Isha as the answer to your question is contained within.
A node must have file server installed to be specific which your question is not. What are you actually trying to do.
Retrieving data ...