Does Partitioner run in its own JVM or shares with another process?
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Explain how mapreduce works.
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
Is it possible to rename the output file?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
Explain what is the function of mapreduce partitioner?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
Explain the differences between a combiner and reducer
What platform and Java version is required to run Hadoop?
What is MapReduce?
What is optimal size of a file for distributed cache?
What is identity mapper and reducer? In which cases can we use them?
When should you use a reducer?
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