Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
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What is a "map" in Hadoop?
In MapReduce Data Flow, when Combiner is called?
Can we submit the mapreduce job from slave node?
how indexing in HDFS is done?
What happen if the number of the reducer is 0 in MapReduce?
how Hadoop is different from other data processing tools?
What are the steps involved in MapReduce framework?
What is MapReduce? What are the syntax you use to run a MapReduce program?
Describe what happens to a mapreduce job from submission to output?
What is the best way to copy files between HDFS clusters?
What is the job of blend () and repartition () in Map Reduce?
Define the Use of MapReduce?
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