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What is a MapReduce Combiner?
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what are the most common input formats defined in Hadoop?
For a job in Hadoop, is it possible to change the number of mappers to be created?
When is the reducers are started in a MapReduce job?
What are the identity mapper and reducer in MapReduce?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
How to specify more than one directory as input in the Hadoop MapReduce Program?
Can we rename the output file?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
what is WebDAV in Hadoop?
What is Data Locality in Hadoop?
What is the function of mapreduce partitioner?
What is InputFormat in Hadoop MapReduce?
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