What happens when the node running the map task fails before the map output has been sent to the reducer?
How do Hadoop MapReduce works?
Explain what combiners are and when you should use a combiner in a mapreduce job?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
Write a short note on the disadvantages of mapreduce
how JobTracker schedules a task ?
what is distributed cache in mapreduce framework?
What is the function of mapreduce partitioner?
A number of combiners can be changed or not in MapReduce?
What is Text Input Format?
List out Hadoop's three configuration files?
When is it not recommended to use MapReduce paradigm for large
What is Data Locality in Hadoop?