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Apache Hadoop (394) - MapReduce (354)
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Hadoop Interview Questions
Un-Answered Questions { Hadoop }
What is the full form of fsck?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What will happen in case you have not issued the command?
How to write a Custom Key Class?
What MapReduce framework consists of?
Explain HCatLoader APIs?
What do we mean by Paraquet?
How will you list all the columns of a table using Apache Sqoop?
What are the different components of a Hive query processor?
What is a task tracker?
Explain how do ‘map’ and ‘reduce’ works?
Can you define yarn?
What is flatten in pig?
How many daemon processes run on a hadoop cluster?
How is RDD in Apache Spark different from Distributed Storage Management?
