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How to compress mapper output in Hadoop?
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What is the difference between a MapReduce InputSplit and HDFS block?
Where is Mapper output stored?
Define the purpose of the partition function in mapreduce framework
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
How many Reducers run for a MapReduce job?
What is the Reducer used for?
What is the need of MapReduce?
how can you check whether Namenode is working beside using the jps command?
How to create custom key and custom value in MapReduce Job?
what job does the conf class do?
When is it not recommended to use MapReduce paradigm for large scale data processing?
How does Mappers run method works?
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