What is a record reader?
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What are the Hadoop features extended to its eco-system components ?
What jobtracker is in hadoop? What are the activities followed by hadoop?
Explain what is a sequence file in hadoop?
What is TextInputFormat in Hadoop?
Ideally what should be replication factor in a Hadoop cluster?
What is the use of cloudera?
Why aggregation cannot be done in Mapper?
What happen if number of reducer is set to 0 in Hadoop?
Can hadoop replace relational database?
Can we deploy job tracker other than name node?
Where is hadoop-env.sh file present?
Compare Hadoop and RDBMS?
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