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What are mapreduce new and old apis while writing map reduce program?. Explain how it works
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How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Explain the input type/format in mapreduce by default?
Is reduce-only job possible in Hadoop MapReduce?
how can you debug Hadoop code?
What are the various configuration parameters required to run a mapreduce job?
Explain about the partitioning, shuffle and sort phase in MapReduce?
what is WebDAV in Hadoop?
What happens when a DataNode fails during the write process?
Explain the differences between a combiner and reducer
How can you add the arbitrary key-value pairs in your mapper?
What happen if the number of the reducer is 0 in MapReduce?
What are the various InputFormats in Hadoop?
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