How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?
what is Speculative Execution?
Why Hadoop MapReduce?
Explain what is “map” and what is "reducer" in hadoop?
Explain what does the conf.setMapper Class do in MapReduce?
What is a TaskInstance?
what happens in textinformat ?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
Define Writable data types in MapReduce?
What is the problem with the small file in Hadoop?
How can we control particular key should go in a specific reducer?
What is shuffling in mapreduce?