Differentiate Reducer and Combiner in Hadoop MapReduce?
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what is storage and compute nodes?
What is optimal size of a file for distributed cache?
How many numbers of reducers run in Map-Reduce Job?
How to set mappers and reducers for Hadoop jobs?
What is the key- value pair in Hadoop MapReduce?
What does a 'MapReduce Partitioner' do?
What is the job of blend () and repartition () in Map Reduce?
Is reduce-only job possible in Hadoop MapReduce?
Developing a MapReduce Application?
What is heartbeat in hdfs?
What is the inputsplit in map reduce software?
how JobTracker schedules a task ?
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