how to proceed to write your first mapreducer program?
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Where is the output of Mapper written in Hadoop?
What is MapReduce? What are the syntax you use to run a MapReduce program?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
how indexing in HDFS is done?
What is the need of MapReduce in Hadoop?
When should you use sequencefileinputformat?
What is heartbeat in hdfs?
What is the default value of map and reduce max attempts?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What are the main components of MapReduce Job?
Explain the general mapreduce algorithm
Explain the input type/format in mapreduce by default?
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