How many Reducers run for a MapReduce job?
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What is map/reduce job in hadoop?
What counter in Hadoop MapReduce?
What is Data Locality in Hadoop?
What do you know about nlineinputformat?
Explain what you understand by speculative execution
What is the next step after Mapper or MapTask?
Whether the output of mapper or output of partitioner written on local disk?
What is MapReduce?
What are the configuration parameters in the 'MapReduce' program?
What is the difference between HDFS block and input split?
Define MapReduce?
What is heartbeat in hdfs? Explain.
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