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Explain what happens in text format?
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What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
While starting hadoop services, datanode service is not running?
Define data cleansing?
Explain how do you overwrite replication factor?
What are the most common InputFormats in Hadoop?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
How would an hadoop administrator deploy various components of hadoop in production?
What happens if you don?t override the mapper methods and keep them as it is?
Which one is default?
What is Balancer in Hadoop?
What is High Availability feature in Hadoop2?
What are the differences between hadoop 1 and hadoop 2?
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