What do you know about yarn?
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What does name-node mean in hadoop?
What are the side data distribution techniques?
what is next step after mapper or maptask?
Can you define a checkpoint?
In which location name node sores its metadata and why?
What are some typical functions of job tracker in hadoop?
Give me the examples of Columnar database ?
How can we create a hadoop cluster from scratch?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
How to use combiner in hadoop ?
How NameNode tackle Datanode failures in Hadoop?
What do you think about the speculative execution?
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