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Is it necessary to write a mapreduce job in java?
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what is distributed cache in mapreduce framework?
What is a "reducer" in Hadoop?
how JobTracker schedules a task ?
What is Shuffling and Sorting in a MapReduce?
How to sort intermediate output based on values in MapReduce?
When the reducers are are started in a mapreduce job?
Different ways of debugging a job in MapReduce?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
How to overwrite an existing output file during execution of mapreduce jobs?
Can MapReduce program be written in any language other than Java?
How to create custom key and custom value in MapReduce Job?
what is "map" and what is "reducer" in Hadoop?
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