How do you stop a running job gracefully?
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What does conf.setmapper class do?
Where sorting is done in Hadoop MapReduce Job?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What do you mean by data locality?
What is an input reader in reference to mapreduce?
What is identity mapper and chain mapper?
How can you add the arbitrary key-value pairs in your mapper?
Different ways of debugging a job in MapReduce?
When should you use sequencefileinputformat?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
What is Mapper in Hadoop MapReduce?
For a job in Hadoop, is it possible to change the number of mappers to be created?
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