What is the purpose of dfsadmin tool?
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Rack awareness of Namenode?
What is a 'block' in HDFS?
What is HDFS High Availability?
What is the use of combiners in the hadoop framework?
Explain use cases where SequenceFile class can be a good fit?
Virtual Box & Ubuntu Installation?
Does this lead to security issues?
What is a block and block scanner in HDFS?
how would you modify that solution to only count the number of unique words in all the documents?
What hadoop does in safe mode?
when hadoop enter in safe mode?
Explain the use of tasktracker in the hadoop cluster?
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