What is DistributedCache and its purpose?
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What is inputsplit in hadoop? Explain.
Are Namenode and job tracker on the same host?
What are combiners and its purpose?
What happens to a NameNode that has no data?
On what basis Namenode will decide which datanode to write on?
What is unstructured data?
What are the important differences between apache and hadoop?
What is NoSQL?
Knox and Hadoop Development Tools?
What are the limitations of importing RDBMS tables into Hcatalog directly?
On what basis name node distribute blocks across the data nodes?
Can Hadoop be compared to NOSQL database like Cassandra?