Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
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Define the purpose of the partition function in mapreduce framework
how can you debug Hadoop code?
What is a Distributed Cache in Hadoop?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
What is the difference between Job and Task in MapReduce?
Which Sorting algorithm is used in Hadoop MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
What is mapper in map reduce?
what are the basic parameters of a Mapper?
What are the main configuration parameters in a MapReduce program?
how Hadoop is different from other data processing tools?
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