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How to specify more than one directory as input in the Hadoop MapReduce Program?
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How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
How is mapreduce related to cloud computing?
Explain about the partitioning, shuffle and sort phase in MapReduce?
What is identity mapper and chain mapper?
Define Writable data types in MapReduce?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What does conf.setmapper class do?
How to submit extra files(jars, static files) for MapReduce job during runtime?
How to set the number of reducers?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
How to set mappers and reducers for Hadoop jobs?
Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?
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