Difference between mapreduce and spark
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What is OutputCommitter?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
what are the three modes in which Hadoop can be run?
What is the function of mapreduce partitioner?
It can be possible that a Job has 0 reducers?
What is sqoop in Hadoop ?
What are advantages of Spark over MapReduce?
What is the difference between Reducer and Combiner in Hadoop MapReduce?
In Hadoop, which file controls reporting in Hadoop?
what happens in textinformat ?
Explain about the partitioning, shuffle and sort phase
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