Describe what happens to a mapreduce job from submission to output?
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How many InputSplits is made by a Hadoop Framework?
Explain what does the conf.setMapper Class do in MapReduce?
In MapReduce Data Flow, when Combiner is called?
What is reduce side join in mapreduce?
How to get the single file as the output from MapReduce Job?
How many Reducers run for a MapReduce job?
What is the role of recordreader in hadoop mapreduce?
Explain InputSplit in Hadoop MapReduce?
Why MapReduce uses the key-value pair to process the data?
How many times combiner is called on a mapper node in Hadoop?
What is heartbeat in hdfs?
Mention Hadoop core components?
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