Mention when to use Map reduce mode?
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Explain InputSplit in Hadoop MapReduce?
Is YARN a replacement of Hadoop MapReduce?
Explain the difference between a MapReduce InputSplit and HDFS block?
What is a "reducer" in Hadoop?
What is the difference between Reducer and Combiner in Hadoop MapReduce?
A number of combiners can be changed or not in MapReduce?
How many times combiner is called on a mapper node in Hadoop?
Can we rename the output file?
Is reduce-only job possible in Hadoop MapReduce?
List the network requirements for using Hadoop ?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
Explain what is distributed cache in mapreduce framework?
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