What is structured data?
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How to enable trash/recycle bin in hadoop?
Define a commodity hardware? Does commodity hardware include ram?
What is the main purpose of HDFS fsck command?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What is IdentityMapper?
Name the various types of lists supported by bootstrap.
What is the purpose of dfsadmin tool?
Are Namenode and job tracker on the same host?
On what basis name node distribute blocks across the data nodes?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
How can one increase replication factor to a desired value in Hadoop?
when hadoop enter in safe mode?
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