In Hadoop what is InputSplit?
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Mention what is the next step after mapper or maptask?
In Hadoop what is InputSplit?
Explain the process of spilling in Hadoop MapReduce?
how JobTracker schedules a task ?
Why can aggregation not be done in Mapper in MapReduce?
List out Hadoop's three configuration files?
How to submit extra files(jars, static files) for MapReduce job during runtime?
What do you know about nlineinputformat?
How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
What is the need of key-value pair to process the data in MapReduce?
What is a scarce system resource?
In MapReduce, ideally how many mappers should be configured on a slave?
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