What are the main components in Hadoop Eco-System and what are their functions ?
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Can you explain record reader?
What does the high availability of a name-node means? How is it accomplished?
Give me the examples of Columnar database ?
What are the four modules that make up the Apache Hadoop framework?
What is the best practice to deploy the secondary name node?
Is there another way to check whether Namenode is working?
If DataNode increases, then do we need to upgrade NameNode?
What is fsck?
What are the main components of hadoop?
Explain the core methods of the reducer?
Can we deploye job tracker other than name node?
How would an hadoop administrator deploy various components of hadoop in production?
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