Can MapReduce program be written in any language other than Java?
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When is it not recommended to use MapReduce paradigm for large scale data processing?
How to submit extra files(jars, static files) for MapReduce job during runtime?
What is LazyOutputFormat in MapReduce?
Define speculative execution?
what does the text input format do?
What is a "map" in Hadoop?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
Explain the general mapreduce algorithm
Does Partitioner run in its own JVM or shares with another process?
What is KeyValueTextInputFormat in Hadoop MapReduce?
In MapReduce, ideally how many mappers should be configured on a slave?
when do reducers play their role in a mapreduce task?
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