How many Mappers run for a MapReduce job in Hadoop?
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What is KeyValueTextInputFormat in Hadoop MapReduce?
What are the advantages of using map side join in mapreduce?
What is partitioner and its usage?
What is partitioning in MapReduce?
What are the fundamental configurations parameters specified in map reduce?
How hadoop mapreduce works?
What is heartbeat in hdfs?
Explain about the partitioning, shuffle and sort phase
how can you check whether Namenode is working beside using the jps command?
What are ‘maps’ and ‘reduces’?
what is "map" and what is "reducer" in Hadoop?
What is the relation between MapReduce and Hive?