What is difference between secondary namenode, checkpoint namenode & backupnode?
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What are the most common OutputFormat in Hadoop?
Why is checkpointing important in hadoop?
What is TaskTracker?
Does hadoop follows the unix pattern?
What is the best practice to deploy the secondary name node?
What are the modes in which Hadoop run?
List out some common problems faced by data analyst?
Mention what job does the conf class do?
What mode(s) can hadoop code be run in?
Explain how can we check whether namenode is working or not?
List of the some best tools that can be useful for data-analysis?
What happen if a datanode loses network connection for a few minutes?
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