What does name-node mean in hadoop?
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What is the difference between namenode and datanode in hadoop?
What is the number of default partitioner in hadoop?
Mention what is rack awareness?
What is the use of recordreader in hadoop?
What do you think about the speculative execution?
Why is Data Block size set to 128 MB in Hadoop?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
What are the hadoop configuration files at present?
What is Fault Tolerance?
what happens when namenode goes down during file read operation in hadoop?
Why use hadoop?
List out some common problems faced by data analyst?
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