What is salary of hadoop developer?
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What is Writable & WritableComparable interface?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
What is commodity hardware?
Explain use cases where SequenceFile class can be a good fit?
Main Components of Hadoop?
What does the command mapred.job.tracker do?
Explain why do we need hadoop?
How to configure hadoop to reuse JVM for mappers?
Can we do online transactions(oltp) using hadoop?
What is the difference between SQL and NoSQL?
How to change Replication Factor For below cases ?
On What concept the Hadoop framework works?
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