Define speculative execution?
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Can we submit the mapreduce job from slave node?
What is optimal size of a file for distributed cache?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
Explain what is the function of mapreduce partitioner?
What is shuffling and sorting in Hadoop MapReduce?
Different ways of debugging a job in MapReduce?
What is the data storage component used by Hadoop?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What is the role of a MapReduce partitioner?
What do sorting and shuffling do?
Explain what does the conf.setMapper Class do in MapReduce?
Write a Mapreduce Program for Character Count ?
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