What are the different commands used to startup and shutdown Hadoop daemons?
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What is hadoop? Name the main components of a hadoop application?
What is the role of the secondary namenode?
What does name-node mean in hadoop?
Clarify what a task tracker is in hadoop?
What are the limitations of Hadoop?
What are the most common OutputFormat in Hadoop?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
What is JobTracker?
What does the file hadoop-metrics.properties do?
How can we create a hadoop cluster from scratch?
How would you check whether your NameNode is working or not?
What is TextInputFormat in Hadoop?
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