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When Namenode is down what happens to job tracker?
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More MapReduce Interview Questions
Illustrate a simple example of the working of MapReduce.
How do ‘map’ and ‘reduce’ work?
What does conf.setmapper class do?
Does Partitioner run in its own JVM or shares with another process?
What is shuffling in mapreduce?
how JobTracker schedules a task ?
What is the Job interface in MapReduce framework?
What is mapper in map reduce?
Explain about the partitioning, shuffle and sort phase
How to set which framework would be used to run mapreduce program?
List out Hadoop's three configuration files?
Can MapReduce program be written in any language other than Java?
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