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What is Reduce only jobs?
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Answer / bindu
It takes the output of map task as input and then do reduce work.
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Explain the general mapreduce algorithm
How to set the number of mappers for a MapReduce job?
what does the text input format do?
What is the job of blend () and repartition () in Map Reduce?
When should you use sequencefileinputformat?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
What happens when the node running the map task fails before the map output has been sent to the reducer?
How can we control particular key should go in a specific reducer?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
What platform and Java version is required to run Hadoop?
What is the InputSplit in map reduce ?
Difference between mapreduce and spark
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