How to write a custom partitioner for a Hadoop MapReduce job?
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Can we set the number of reducers to zero in MapReduce?
How many Mappers run for a MapReduce job?
Where the mapper's intermediate data will be stored?
Explain the Reducer's reduce phase?
What do you understand by compute and storage nodes?
How to configure the number of the Combiner in MapReduce?
Explain the Reducer's Sort phase?
What do you mean by inputformat?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What is the purpose of textinputformat?
Explain the general mapreduce algorithm
how Hadoop is different from other data processing tools?