What is the fundamental difference between a MapReduce InputSplit and HDFS block?
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How many Reducers run for a MapReduce job?
What is the purpose of textinputformat?
Developing a MapReduce Application?
What is the Hadoop MapReduce API contract for a key and value Class?
Explain what is “map” and what is "reducer" in hadoop?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What are the disservices of utilizing Apache Spark over Hadoop MapReduce?
Is YARN a replacement of Hadoop MapReduce?
Explain the Reducer's Sort phase?
Define Writable data types in MapReduce?
What is identity mapper and reducer? In which cases can we use them?
What is the difference between map and reduce?
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