Compare Hadoop 2 and Hadoop 3?
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Can we change the file cached by distributed cache
What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
What is Mapper? How can we compress Mapper output in Hadoop?
What is the difference between a hadoop database and relational database?
How to specify more than one path for storage in Hadoop?
what is next step after mapper or maptask?
Can you explain sequence file in hadoop?
Mention how many inputsplits is made by a hadoop framework?
Clarify what is sequence file input format?
What daemons run on master nodes?
Clarify what a task tracker is in hadoop?
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