Explain how is hadoop different from other data processing tools?
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What happens to job tracker when namenode is down?
What is Apache Hadoop YARN?
Explain why the name ‘hadoop’?
What do masters consist of?
Explain how input and output data format of the hadoop framework?
Is hadoop obsolete?
Why the name ‘hadoop’?
What does /etc /init.d do?
Explain how do ‘map’ and ‘reduce’ works?
Define a namenode?
What is a Combiner?
What is your favourite tool in the hadoop ecosystem?