Mention what is rack awareness?
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Is it possible to have hadoop job output in multiple directories? If yes, how?
When should be hadoop archive create?
What sorts of actions does the job tracker process perform?
How is the splitting of file invoked in Hadoop ?
Can you explain the common input formats in hadoop?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
What is tasktracker in hadoop?
What is heartbeat in hadoop?
What does secondary name-node means?
How ordering in hdfs is finished?
How to create hadoop archive?
What happens if you don?t override the mapper methods and keep them as it is?
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