What is KeyValueTextInputFormat in Hadoop?
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What is a commodity hardware? Does commodity hardware include RAM?
What does hadoop-env.sh do?
Compare Hadoop and RDBMS?
Can you explain speculative execution?
What is Balancer in Hadoop?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
What are some of the characteristics of Hadoop framework?
How to do ‘map’ and ‘reduce’ works?
What does the high availability of a name-node means?
How to create the directory when name node is in safe mode?
Can we create a hadoop cluster from scratch?
Ideally what should be the replication factor in hadoop?
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