What are the most commonly defined input formats in Hadoop?
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What is speculative execution in Hadoop?
What is IdentityMapper?
What do you know about keyvaluetextinputformat?
What are different types of filesystem?
What is a 'block' in HDFS?
What is the problem with small files in Apache Hadoop?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What do you know by storage and compute node?
What is version-id mismatch error in hadoop?
Is it necessary to know java to learn hadoop?
What is high availability in hadoop?
What are the two main parts of the hadoop framework?
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