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What does rack awareness mean?
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How does hadoop achieve fault tolerance?
What is purpose of RecordWriter in Hadoop?
What sorts of actions does the job tracker process perform?
What is the most widely recognized info formats characterized in hadoop?
Is it possible to provide multiple input to Hadoop? If yes then how?
Name the files which are used by the startup and shutdown commands?
What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?
Why is checkpointing important in hadoop?
What is Mapper in Hadoop?
What are the hadoop configuration files at present?
What happen if number of reducer is set to 0 in Hadoop?
Which modes can Hadoop be run in? List a few features for each mode?
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