What do you understand from Node redundancy and is it exist in hadoop cluster?
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If a data Node is full how it's identified?
What infrastructure do we need to process 100 TB data using Hadoop?
What is small file problem in hadoop?
How we can take Hadoop out of Safe Mode?
What is hbase in hadoop?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
Explain the features of stand alone (local) mode?
Define fault tolerance?
What is Row Key?
What is Writable & WritableComparable interface?
What are the modules that constitute the Apache Hadoop 2.0 framework?
Can Hadoop be compared to NOSQL database like Cassandra?