What do slaves consist of?
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Is hadoop a database?
Can you explain how do ‘map’ and ‘reduce’ work?
What are the problems with Hadoop 1.0?
What problems have you faced when you are working on Hadoop code?
How will format the HDFS ?
What is Apache Hadoop?
What is the difference between Apache Hadoop and RDBMS?
what are the steps involved in commissioning adding
What is the default block size in hdfs?
What is the jobtracker?
Explain the difference between NameNode
What is the jobtracker and what it performs in a hadoop cluster?
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