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Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
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List the configuration parameters that have to be specified when running a MapReduce job.
What is the next step after Mapper or MapTask?
how can you check whether Namenode is working beside using the jps command?
When should you use sequencefileinputformat?
What are the various input and output types supported by mapreduce?
A number of combiners can be changed or not in MapReduce?
What is Combiner in MapReduce?
What do you mean by shuffling and sorting in MapReduce?
What is Mapper in Hadoop MapReduce?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
what are the three modes in which Hadoop can be run?
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