What is the main purpose of HDFS fsck command?
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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 a spill factor with respect to the ram?
How can you connect an application
How you can contact your client everyday ?
What is NoSQL?
Mention what are the data components used by Hadoop?
Why do we need a password-less ssh in fully distributed environment?
what is a datanode?
What is a Record Reader in hadoop?
What is MapFile?
What problems have you faced when you are working on Hadoop code?
What is structured data?
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