What is the difference between Hadoop and Traditional RDBMS?
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What is zookeeper in hadoop?
What does /var/hadoop/pids do?
How to come out of the insert mode?
Explain the Job OutputFormat?
Explain why do we need hadoop?
Explain how do ‘map’ and ‘reduce’ works?
What is the relation between job and task in hadoop?
What is the problem with small files in Apache Hadoop?
Can Apache Kafka be used without Zookeeper?
Rack awareness of Namenode?
What is the difference between rdbms and hadoop?
Explain what happens in textinformat ?