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It can be possible that a Job has 0 reducers?
What is Shuffling and Sorting in a MapReduce?
Explain the process of spilling in MapReduce?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
Compare RDBMS with Hadoop MapReduce.
In Hadoop, which file controls reporting in Hadoop?
If reducers do not start before all mappers finish then why does the progress on mapreduce job shows something like map(50%) reduce(10%)? Why reducers progress percentage is displayed when mapper is not finished yet?
How do you stop a running job gracefully?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
Explain what is “map” and what is "reducer" in hadoop?
what is a Task Tracker in Hadoop?
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