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How to write a custom partitioner for a Hadoop MapReduce job?
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More MapReduce Interview Questions
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What is Text Input Format?
How to get the single file as the output from MapReduce Job?
How to set the number of mappers to be created in MapReduce?
What is a mapreduce algorithm?
What is identity mapper and identity reducer?
Where is Mapper output stored?
What is the default input type in MapReduce?
Explain what does the conf.setmapper class do?
what job does the conf class do?
What is partitioner and its usage?
Why Hadoop MapReduce?
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