Whether the output of mapper or output of partitioner written on local disk?
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What is the default value of map and reduce max attempts?
Where is Mapper output stored?
For a Hadoop job, how will you write a custom partitioner?
What is the relationship between Job and Task in Hadoop?
What are the identity mapper and reducer in MapReduce?
What happen if the number of the reducer is 0 in MapReduce?
How can we control particular key should go in a specific reducer?
Explain what does the conf.setMapper Class do in MapReduce?
what are the main configuration parameters that user need to specify to run Mapreduce Job ?
How can you add the arbitrary key-value pairs in your mapper?
What do you understand by compute and storage nodes?
What is Reducer in MapReduce?
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