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How to set mappers and reducers for MapReduce jobs?
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What is a IdentityMapper and IdentityReducer in MapReduce ?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
What are the steps involved in MapReduce framework?
how JobTracker schedules a task ?
Explain slot in Hadoop Map-Reduce v1?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
What is the default value of map and reduce max attempts?
How can you add the arbitrary key-value pairs in your mapper?
Explain task granularity
What are the fundamental configurations parameters specified in map reduce?
What is the next step after Mapper or MapTask?
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