What is TextInputFormat in Hadoop?
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What is Balancer in Hadoop?
What happens when two clients try to access the same file in the hdfs?
What do you understand by unit and ()in scala?
What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
What are the important features of hadoop?
Define “speculative execution” in hadoop?
What is Small File Problem in Hadoop? How can it be resolved?
What is a udf?
How many maps are there in a particular job?
How to handle bad records during parsing?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
Explain what is speculative execution?
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