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What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?
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Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
Mention Hadoop core components?
Can there be no Reducer?
What are ‘reduces’?
What do you understand by mapreduce?
What is the core of the job in MapReduce framework?
How many Mappers run for a MapReduce job?
For a job in Hadoop, is it possible to change the number of mappers to be created?
When Namenode is down what happens to job tracker?
When the reducers are are started in a mapreduce job?
Why comparison of types is important for MapReduce?
How to change a number of mappers running on a slave in MapReduce?
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