What does the high availability of a name-node means?
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Explain map-only job?
How many daemon processes run on a hadoop cluster?
Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
What are the main components of hadoop?
How many maps are there in a particular job?
Explain what is a sequence file in hadoop?
How jobtracker assign tasks to the tasktracker?
Mention what is distributed cache in hadoop?
What is the non dfs used?
What is check pointing in hadoop?
is there a standard procedure to deploy hadoop?
Mention what is data cleansing?
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