What is KeyValueTextInputFormat in Hadoop MapReduce?
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What happens when the node running the map task fails before the map output has been sent to the reducer?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
What is the need of MapReduce in Hadoop?
Explain combiners.
What is a IdentityMapper and IdentityReducer in MapReduce ?
what is distributed cache in mapreduce framework?
Why do we need MapReduce during Pig programming?
Is it important for Hadoop MapReduce jobs to be written in Java?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
What do you understand by mapreduce?
What is SequenceFileInputFormat?
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