How can we create a hadoop cluster from scratch?
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If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
What is a rack?
What does rack awareness algorithm means and why is it utilized as a part of hadoop?
Mention what is data cleansing?
How often do you need to reformat the namenode?
How to do ‘map’ and ‘reduce’ works?
What is High Availability feature in Hadoop2?
What is Balancer in Hadoop?
Which database is used in hadoop?
What is winutils hadoop?
In which location name node sores its metadata and why?
What is partitioning?
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