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What is pseudo-distributed mode?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
Can we write map reduce program in other than java programming language. How?
Are job tracker and task trackers present in separate machines?
What is namenode?
what if job tracker machine is down?
What are the four basic parameters of a mapper?
In which location name node sores its metadata and why?
What are input format, input split & record reader and what they do?
How namenode handles data node failures?
What is the non dfs used?
How can one write custom record reader?
Whats the default port that jobtrackers listens ?
Do we need to place 2nd and 3rd data in rack 2 only?
Is nosql follow relational db model?
