what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
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Explain combiners.
How many Reducers run for a MapReduce job in Hadoop?
How many Reducers run for a MapReduce job?
How to create a custom key and custom value in MapReduce Job?
What are the configuration parameters in the 'MapReduce' program?
What are the primary phases of a Reducer?
Define MapReduce?
What is MapReduce?
What is a combiner and where you should use it?
Define Writable data types in Hadoop MapReduce?
Explain JobConf in MapReduce.
Illustrate a simple example of the working of MapReduce.
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