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Define a daemon?
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What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
What is Schema on Read and Schema on Write?
shouldn't DFS be able to handle large volumes of data already?
What is inputformat in hadoop?
What is the problem with small files in Apache Hadoop?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
Explain the wordcount implementation via hadoop framework ?
On what basis Namenode will decide which datanode to write on?
Is client the end user in HDFS?
What do the master class and the output class do?
Name the various types of lists supported by bootstrap.
Can you give us some more details about ssh communication between masters and the slaves?
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