Does google use hadoop?
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Is hadoop required for data science?
Is secondary namenode a substitute to the namenode?
Explain why the name ‘hadoop’?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
Who is a 'user' in HDFS?
How will format the HDFS ?
What is a task instance in hadoop? Where does it run?
What is HDFS ? How it is different from traditional file systems?
Can you tell us more about ssh?
If a data Node is full how it's identified?
How client application interacts with the NameNode?
How can we check whether namenode is working or not?
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