Answer Posted / sai krishna kesanapalli
Hadoop is an open source distributed processing framework that manages data processing and storing for big data applications running in clustered systems.
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On What concept the Hadoop framework works?
Is hadoop a memory?
Where do you specify the Mapper Implementation?
Rack awareness of Namenode?
What is structured data?
Explain how input and output data format of the hadoop framework?
Can Hadoop be compared to NOSQL database like Cassandra?
Is map like a pointer?
How did you debug your Hadoop code ?
Explain use cases where SequenceFile class can be a good fit?
How to restart Namenode?
Explain why the name ‘hadoop’?
What does the command mapred.job.tracker do?
Define tasktracker.
In which location Name Node stores its Metadata and why?
