What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
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Name the examples of some companies that are using hadoop structure?
How blocks are distributed among all data nodes for a particular chunk of data?
What is a block and block scanner in HDFS?
What is a Record Reader in hadoop?
Explain what happens in textinformat ?
What do masters consist of?
How hdfa differs with nfs?
Does hadoop always require digital data to process?
Is it necessary to know java to learn hadoop?
What is the best hardware configuration to run Hadoop?
What is Input Split in hadoop?
what is a datanode?
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