What is the problem with small files in Hadoop?
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Can you define a checkpoint?
Can you explain sequence file in hadoop?
We have already sql then why nosql?
What is a combiner in hadoop?
How does hadoop achieve fault tolerance?
Explain what is webdav in hadoop?
Does hadoop follows the unix pattern?
What is data cleansing?
Why is Data Block size set to 128 MB in Hadoop?
What is heartbeat in hadoop?
What happen if number of reducer is set to 0 in Hadoop?
When should be hadoop archive create?
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