What is yarn in hadoop?
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How you can contact your client everyday ?
If a data Node is full how it's identified?
when hadoop enter in safe mode?
What is Hadoop?
Input Split & Record Reader and what they do?
What are the functions of NameNode?
How to enable recycle bin or trash in hadoop?
What if rack 2 and datanode fails?
On which port does ssh work?
What is a spill factor with respect to the ram?
shouldn't DFS be able to handle large volumes of data already?
What do you understand from Node redundancy and is it exist in hadoop cluster?