Ideally what should be replication factor in a Hadoop cluster?
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Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?
What is Distributed Cache in Hadoop?
What are the benefits yarn brings in to hadoop?
Explain about Hadoop file system and processing framework?
What is LazyOutputFormat in Hadoop?
What are the core components of Hadoop?
What are the restriction to the key and value class ?
What is CAP Theorem? What aspects does Hadoop support from this theorem?
Ideally what should be the block size in hadoop?
Explain the common input formats in hadoop?
Where are Hadoop’s configuration files located?
What does rack awareness algorithm means and why is it utilized as a part of hadoop?
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