what is difference between int and intwritable?
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If a data Node is full how it's identified?
Is it necessary to write jobs for hadoop in the java language?
What is the problem with small files in Apache Hadoop?
Define a combiner?
Explain the features of pseudo mode?
Can you explain how do ‘map’ and ‘reduce’ work?
what are the nodes in the Hadoop cluster?
What is Derby database?
In which location Name Node stores its Metadata and why?
What platform and java version are required to run hadoop?
Explain how input and output data format of the hadoop framework?
How to change replication factor of files already stored in HDFS?
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