what is JobTracker in Hadoop? What are the actions followed by Hadoop?
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Different ways of debugging a job in MapReduce?
How to compress mapper output in Hadoop?
What happens if the quantity of the reducer is 0 in mapreduce?
what does the text input format do?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
what is Speculative Execution?
what are the three modes in which Hadoop can be run?
What is the difference between a MapReduce InputSplit and HDFS block?
how can you debug Hadoop code?
What is Hadoop Map Reduce ?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
In Map Reduce why map write output to Local Disk instead of HDFS?
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