What is the Hadoop MapReduce API contract for a key and value Class?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What is a distributed cache in mapreduce framework?
When is the reducers are started in a MapReduce job?
Where the mapper's intermediate data will be stored?
What do you know about nlineinputformat?
Why MapReduce uses the key-value pair to process the data?
How does fault tolerance work in mapreduce?
How many Mappers run for a MapReduce job in Hadoop?
What is the problem with the small file in Hadoop?
What does conf.setmapper class do?
What are the advantages of using mapreduce with hadoop?
Is it possible to rename the output file?