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How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
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When is it not recommended to use MapReduce paradigm for large scale data processing?
What is identity mapper and identity reducer?
Compare RDBMS with Hadoop MapReduce.
Where is the output of Mapper written in Hadoop?
What is streaming?
What is the need of MapReduce in Hadoop?
What is the key- value pair in MapReduce?
What are ‘maps’ and ‘reduces’?
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when do reducers play their role in a mapreduce task?
Is it important for Hadoop MapReduce jobs to be written in Java?
What platform and Java version is required to run Hadoop?
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