What are the benefits of Spark over MapReduce?
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Map reduce jobs take too long. What can be done to improve the performance of the cluster?
What is a partitioner and how the user can control which key will go to which reducer?
Why is output file name in Hadoop MapReduce part-r-00000?
It can be possible that a Job has 0 reducers?
Explain slot in Hadoop Map-Reduce v1?
Mention what is the hadoop mapreduce apis contract for a key and value class?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
Why comparison of types is important for MapReduce?
Describe what happens to a mapreduce job from submission to output?
Write a Mapreduce Program for Character Count ?
Explain about the partitioning, shuffle and sort phase
What is shuffling and sorting in Hadoop MapReduce?
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