What is the command to change the replication factor ?
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How is the splitting of file invoked in Hadoop ?
Explain small file problem in hadoop
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
Explain the usage of Context Object?
What are the functionalities of jobtracer?
Can I set the number of reducers to zero?
What are the four basic parameters of a mapper?
Whats the default port that jobtrackers listens ?
What are the most common InputFormats in Hadoop?
How would you check whether your NameNode is working or not?
What do you think about the speculative execution?
what if job tracker machine is down?
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